T-PicoC3 is LILYGO's first motherboard with dual MCUs – equipped with Raspberry Pi RP2040 and ESP32-C3 chip (supporting WiFi and Bluetooth).Specifications
MCU
RP2040 Dual ARM Cortex-M0+
Flash
4 MB
Programming language
C/C++, MicroPython
Support machine leraning library
TensorFlow Lite
Onboard functions
Buttons: IO06+IO07, battery power detection
1.14 inch ST7789V IPS LCD
Resolution
135 x 240
Display
Full-color TFT
Interface
4-Wire SPI
Power supply
3.3 V
Operating temperature
-20~70°C
Dimensions
2.4 x 5.3 cm (W x H)
DownloadsGitHub
Build Your Own Vintage Radio Broadcaster
The Elektor AM Transmitter Kit allows streaming audio to vintage AM radio receivers. Based on a Raspberry Pi Pico microcontroller module, the AM Transmitter can transmit on 32 frequencies in the AM band, from 500 kHz up to 1.6 MHz in 32 steps of approx. 35 kHz. The frequency is selected with a potentiometer and shown on a 0.96" OLED display. A pushbutton allows toggles the transmitting mode between On and Off. The range of the transmitter depends on the antenna. The onboard antenna provides a range of a few centimeters, requiring the AM Transmitter to be placed close to or inside the radio. An external loop antenna (not included) can be connected to increase the range.
The Elektor AM Transmitter Kit comes as a kit of parts that you must solder to the board yourself.
Features
The board is compatible with a Hammond 1593N enclosure (not included).A 5 VDC power supply with micro-USB connector (e.g., an old phone charger) is needed to power the kit (not included). Current consumption is 100 mA.
The Arduino software (requiring Earle Philhower’s RP2040 Boards Package) for the Elektor AM Transmitter Kit plus more information is available at the Elektor Labs page of this project.
Component List
Resistors
R1, R4 = 100 Ω
R2, R3, R8 = 10 kΩ
R5, R6, R9, R10, R11 = 1 kΩ
R7 = optional (not included)
P1 = potentiometer 100 kΩ, linear
Capacitors
C1 = 22 µF 16V
C2, C4 = 10 nF
C3 = 150 pF
Miscellaneous
K1 = 4×1 pin socket
K2, K3 = 3.5 mm socket
Raspberry Pi Pico
pushbutton, angle mount
0.96" monochrome I²C OLED display
PCB 150292-1
LILYGO T-Display ESP32 WiFi and Bluetooth Module Development Board 1.14-inch LCD Control BoardSpecifications
Chipset
Espressif-ESP32 240 MHz Xtensa single-/dual-core 32-bit LX6 microprocessor
Flash
QSPI flash 16 MB
SRAM
520 kB SRAM
Button
Reset
USB to TTL
CP2104
Modular interface
UART, SPI, SDIO, I²C, LED PWM, TV PWM, I²S, IRGPIO, ADC, capacitor touch sensor, DACLNA pre-amplifier
Display
IPS ST7789V 1.14 Inch
Working voltage
2.7-4.2 V
Working current
About 67 MA
Sleep current
About 350 uA
Working temperature range
-40°C ~ +85°C
Size & Weight
51.52 x 25.04 x 8.54 mm (7.81 g)
Power Supply
USB 5 V/1 A
Charging current
500 mA
Battery
3.7 V lithium battery
JST Connector
2-Pin 1.25 mm
USB
Type-C
WiFi
Standard
FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC (ESP32 chip)
Protocol
802.11 b/g/n (802.11n, speed up to 150 Mbps) A-MPDU and A-MSDU polymerization, support 0.4μS Protection interval
Frequency range
2.4~2.5 GHz (2400~2483.5 M)
Transmit Power
22 dBm
Communication distance
300 m
Bluetooth
Protocol
Meet bluetooth v4.2BR/EDR and BLE standard
Radio frequency
With -97 dBm sensitivity NZIF receiver Class-1, Class-2 & Class-3 emitter AFH
Audio frequency
CVSD&SBC audio frequency
Software
Wi-Fi Mode
Station/SoftAP/SoftAP+Station/P2P
Security mechanism
WPA/WPA2/WPA2-Enterprise/WPS
Encryption Type
AES/RSA/ECC/SHA
Firmware upgrade
UART download/OTA (Through network/host to download and write firmware)
Software Development
Support cloud server development /SDK for user firmware development
Networking protocol
IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
User Configuration
AT + Instruction set, cloud server, Android/iOS app
OS
FreeRTOS
Included
1x T-Display (16 MB)
1x Charging Cable
2x Pin
An alternative power supply for the Elektor Fortissimo-100 Power Amplifier
For those who object to a switch-mode power supply for the Fortissimo-100 Power Amplifier, this kit yields a linear, symmetrical, voltage regulator marked by low dropout voltage, high output current, and excellent stability – all obtained from discrete components.
Bearing in mind that nearly all high-performance audio power amplifiers benefit from a stabilized power supply, this linear power supply is specifically designed for a symmetrical output voltage of ±40 V and peak currents of 13 A (15 A peak achievable). As an example, the average current drawn by a Fortissmo-100 amp driving a 3 Ω load is 4 A per regulator.
Specifications
Input voltage range
52 V DC (low power usage) to 43 V DC
Output voltage range
approx. 38.9 V DC to 41.4 V DC (theoretically)38.6 V DC to 41.1 V DC (measured)
Dropout voltage at 6 A
42 V
Dropout voltage at 9.5 A
43 V
Dropout voltage at 13.5 A
44 V
Max. current
15 A peak (half sinewave), 4.8 A (average)
SOAR protection
15 A at 45 V DC in
Ripple rejection
>60 dB (@ 5 A DC load)
No-load input current
27 mA (@ 52 V DC input)
Included
PCB
All parts including heatsinks
The DIY Mini Digital Oscilloscope Kit (with shell) is an easy-to-build kit for a tiny digital oscilloscope. Besides the power switch, it has only one other control, a rotary encoder with a built-in pushbutton. The kit's microcontroller comes preprogrammed. The 0.96" OLED display has a resolution of 128 x 64 pixels. The oscilloscope features one channel that can measure signals up to 100 kHz. The maximum input voltage is 30 V, the minimum voltage is 0 V.
The kit consists of through-hole components (THT) are surface-mount devices (SMD). Therefore, assembling the kit means soldering SMD parts, which requires some soldering experience.
Specifications
Vertical range: 0 to 30 V
Horizontal range: 100 µs to 500 ms
Trigger type: auto, normal and single
Trigger edge: rising and falling
Trigger level: 0 to 30 V
Run/Stop mode
Automatic frequency measurement
Power: 5 V micro-USB
10 Hz, 5 V sinewave output
9 kHz, 0 to 4.8 V square wave output
Display: 0.96-inch OLED screen
Dimensions: 57 x 38 x 26 mm
Downloads
Documentation
The RFM95 is a LoRa/SigFox module to be used with Arduino / ESP32 / Raspberry Pi and many other. With ideal conditions, you can get ranges up to 2km+ while having only small power consumption.
It is equipped with the LoRa long range modem that provides ultra-long range spread spectrum communication and high interference immunity.
Using the patented LoRa™ modulation technique RFM95 can achieve a sensitivity of over -148dBm using a low-cost crystal and bill of materials. The high sensitivity combined with the integrated +20 dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness.
Features
Maximum link budget: 168 dB
+20 dBm - 100 mW constant RF output vs. V supply
+14 dBm high efficiency PA
Programmable bit rate up to 300 kbps.
High sensitivity: down to -148 dBm.
Bullet-proof front end: IIP3 = -12.5 dBm.
Built-in bit synchronizer for clock recovery.
Excellent blocking immunity.
Low RX current of 10.3 mA, 200 mA register retention.
Fully integrated synthesizer with a resolution of 61 Hz.
FSK, GFSK, MSK, GMSK, LoRa™ and OOK modulation.
Preamble detection.
127 dB Dynamic Range RSSI.
Automatic RF Sense and CAD with ultra-fast AFC.
Packet engine up to 256 bytes with CRC.
Built-in temperature sensor
Low battery indicator.
Dimensions: 16 x 16 mm
Applications
Automated Meter Reading
Home and Building Automation
Wireless Alarm and Security Systems
Industrial Monitoring and Control
Long range Irrigation Systems
Features 480 x 320 resolution, IPS screen, 65K colors, clear and colorful displaying effect Dedicated touch controller, bringing more smooth touching effect than AD-controlled solutions MicroSD card slot for storing images and direct displaying them easily Programmable backlight control, power saving Comes with development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples) Specifications Operating voltage 5 V Resolution 480 x 320 pixels Communication interface SPI Display size 73.44 x 48.96 mm Display panel IPS Pixel size 0.153 x 0.153 mm Driver ILI9488 Dimensions 86.00 x 57.20 mm Touch controller XPT2046 Downloads Wiki
Scrolling text display with eight 8 x 8 LED dot matrix displays (512 LEDs in total). Built around an ESP-12F Wi-Fi module (ESP8266-based) programmed in the Arduino IDE. ESP8266 web server allows control of displayed text, scroll delay and brightness with a mobile phone or other Wi-Fi-connected (portable) device. Features 10 MHz Serial Interface Individual LED Segment Control Decode/No-Decode Digit Selection 150 µA Low-Power Shutdown (Data Retained) Digital and Analog Brightness Control Display Blanked on Power-Up Drive Common-Cathode LED Display Slew-Rate Limited Segment Drivers for Lower EMI (MAX7221) SPI, QSPI, MICROWIRE Serial Interface (MAX7221) 24-Pin DIP and SO Packages
This is a soldering kit for the starters to learn soldering. After 1-2 hours soldering and assembly, and easy steps to set the Wifi name/password with a phone, you will get:
A real-time clock, it will get the world real-time from the Network timing protocol, you can set your local time zone easily
An Alarm clock, with loud noise
An Online world weather forecaster, about the local temperature/weather, you can easily change/alter your address/cities without any re-programming
To reduce the soldering difficulty, all the SMD parts have been soldered, you only need to solder the THT parts, and then set the Wifi network with a phone, and finally turn on the power to enjoy the success.
Included
ESP32 SmartClock kit mainboard
Batch of capacitors & resistors/connectors
Colorful LCD module
Lipo battery
Acrylic boards
Nuts & screws
Downloads
User Manual
Source code on GitHub
The FNIRSI NVS-40 is a night vision binocular designed for observing objects in pitch-black or low-light environments. It offers unlimited observation distance in weak light conditions and can reach up to 300 meters in complete darkness.
The device is equipped with a USB interface and a TF card slot, enabling firmware updates and storage for photos and videos. Fully functional, it features a color screen that can be used during both day and night. Key functionalities include photo capturing, video recording, playback, and electronic zoom of up to 6x.
This device serves as the ultimate auxiliary tool for extending human night vision capabilities.
Specifications
Drawtube
Binocular
Electronic Zoom
6x
Magnification
500x & under
Objective Lens Diameter
25 mm
Low Light or Daytime Observation Distance
2 m~∞
Full Black Observation Distance
300 m (max)
Video Resolution
4K (3840x2160) / 2K (2560x1440) / 1080FHD (1920x1080) / 720P (1280x720) / VGA (640x480) / QVGA (320x240)
Photo Resolution
36MP / 32MP / 30MP / 24MP / 20MP / 16MP / 12MP / 10MP / 8MP / 5MP / 3MP / VGA
IR Wavelength
850 nm
Water Resistance Level
IPX6
White Balance
Automatic, Daylight, Cloudy, Tungsten Filament, Fluorescent
ISO
Auto, 100, 200, 400, 800
LCD Brightness Adjustment
High, medium, and low levels
Light Source Frequency
50 Hz/60 Hz
Storage
32 GB TF memory card
Voltage
3.7 V
Power Supply
18650 internal battery
Charging
USB-C (5 V/1 A)
Display
3.0" HD IPS Color Screen
Temperature
−5~40°C
Humidity
0-80%
Languages
Chinese / Traditional / English / Japanese / Italian / French / German / Russian / Spanish / Portuguese
Dimensions
136 x 153 x 56 mm
Weight
265 g
Included
1x NVS-40 Night Vision Binocular
1x 18650 Lithium battery
1x TF memory card (32 GB)
1x USB cable
1x Storage bag
1x Manual
Downloads
Manual
This DIY Color Display Kit is a fun and educational project for makers of all ages. It is a great way to learn about electronics, programming, and improve your soldering skills.
Microcontroller
As this kit ships with the ePulse Feather ESP32 development board, the kit thereby inherits all the great features of said devkit.
Display
The large 3.5" 320x480 color display also sports a high-precision capacitive touch interface. Contrary to resistive touch interfaces that often work best when using a stylus this auto-calibrated module offers a smartphone-like user experience.
Connector PCB
The connectors for the display are already pre-assembled on the connector PCB, as those require a more experienced hand at the soldering iron. Hence, for the inexperienced solderer this offers the best of both worlds. Also, you may choose to not add the on-off switch or the Grove connector; both are optional.
The connector PCB offers extendability in two ways: the broken out pins of the microcontroller and the connector for the Grove system.
Specifications
Microcontroller
ESP32
Module
ePulse Feather
Display Resolution
320 x 480
Display Driver
ILI9488
Touch Display
Capacitive
Included
1x ePulse Feather, low-power ESP32 development board
1x 3.5" 320x480 Color Display (ILI9488, TFT) with capacitive touch Interface (FT6236) Color Kit Grande Connector Board
1x Custom connector PCB to connect the ESP32 and the display Header Pins
1x Set of special pin headers (to be soldered to connector PCB Color Kit Power Switch)
1x On-off switch (to be optionally soldered to connector PCB SMD Grove Connector)
1x Grove connector (to be optionally soldered to connector PCB Color Kit Grande Foam Stickers)
4x Double-sided foam adhesive to secured display to PCB
Downloads
Schematics
Documentation
Pull Down Lever For Highest Score!
This Elektor Circuit Classic from 1984 shows a playful application of CMOS 400x series logic ICs in combination with LEDs, a highly popular combination at the time. The project imitates a spinning-digit type slot machine.
The Game
To play the game, first agree on the number of rounds. Player 1 actuates the switch lever as long as desired and releases it. The LEDs then show the score which is the sum of the 50-20-10-5 digits lit up. If the Play Again! LED lights, Player 1 has another, “free” round. If not, it’s Player 2’s turn. The players keep tab of their scores, and the highest score wins.
Features
LEDs Indicate Score
Multi-Player and Play Again!
Elektor Heritage Circuit Symbols
Tried & Tested by Elektor Labs
Educational & Geeky Project
Through-Hole Parts Only
Included
Printed Circuit Board
All Components
Wooden Stand
Bill of Materials
Resistors (5%, 250 mW)
R1,R2,R3,R4 = 100kΩ
R5,R6,R7,R8,R9,R10 = 1kΩ
Capacitors
C1 = 4.7nF, 10%, 50V, 5mm
C2 = 4.7μF, 10%, 63V, axial
C3,C4 = 100nF, 10 %, 50V, ceramic X7R, 5mm
Semiconductors
LED1-LED6 = red, 5mm (T1 3/4)
IC1 = 74HC4024
IC2 = 74HC132
Miscellaneous
S1 = switch, toggle, 21mm lever, SPDT, momentary
S2 = switch, tactile, 24V, 50mA, 6x6mm
S3 = switch, slide, SPDT
IC1,IC2 = IC socket, DIP14
BT1 = PCB-mount CR2032 battery retainer clip
Desktop Stand
PCB 230098-1
Not included: BT1 = CR2032 coin cell battery
HC-SR501 auto-senses light for various applications (in house, basement, outdoor, warehouse, garage, etc,) for ventilator control, alarm, etc.Features
Automatic infrared detection (LHI778 probe design)Output goes high when objects enter the sensing range, and automatically returns to low when object leaves
Optional photosensitive control
Optional temperature compensation
Trigger mode jumper
L: Non-repeatable / delay mode: sensor goes low after the delay, regardless of the presence of the object.
H: Repeatable: sensor stays high as long as any object is detected during the delay time.
Wide operating voltage range
Micro-amp power
Output high signal: easy to achieve docking with the various types of circuit.
Infrared technology (LHI778 probe design)
High sensitivity | high reliability
Widely used especially for battery-powered products
Specifications
Voltage
4.8 V – 20 V
Current (idle)
<50 µA
Logic output
3.3 V / 0 V
Delay time
0.3 s – 200 s, custom up to 10 min
Lock time
2.5 s (default)
Trigger
repeat : L = disable , H = enable
Sensing range
<120 °, within 7 m
Temperature
– 15 ~ +70 °C
Dimension
32 x 24 mmscrew-screw 28 mm, M2
Lens diameter: 23 mm
The Dragino LDS02 is powered by 2x AAA batteries and targets long-time use, these two batteries can provide about 16,000~70,000 uplink packets. After the batteries run out, the user can easily open the enclosure and replace them with 2 common AAA batteries.
It will send periodically data every day as well as for each door open/close action. It also counts the door open times and calculates the last door open duration. The user can also disable the uplink for each open/close event, instead, the device can count each open event and uplink periodically.
It also has the open alarm feature, the user can set this feature so the device will send an alarm if the door has been open for a certain time. Each LDS02 is pre-load with a set of unique keys for LoRaWAN registration, register these keys to the LoRaWAN server and it will auto-connect after power on.
Features
LoRaWAN v1.0.3 Class A
SX1262 LoRa Core
Door Open/Close detect
2 x AAA LR03 Batteries
Door open/close statistics
AT Commands to change parameters
Uplink on periodically and open/close action
Open duration alarm
Downlink to change configure
Applications
Wireless Alarm and Security Systems
Home and Building Automation
Industrial Monitoring and Control
The digital night vision monocular is a powerful device that combines advanced technology with user-friendly comfort. Featuring high-resolution photo and video capabilities, adjustable infrared brightness, and a compact design, it is perfectly suited for a variety of outdoor activities such as camping, fishing, and wildlife observation.
Specifications
Optical Magnification
6x
Digital Zoom
8x
IR Illumination Power/Wavelength
3 W/850 nm
Lens Diameter
25 mm
Photo Resolution
40 MP, 30 MP, 25 MP, 20 MP, 10 MP, 8 MP, 5 MP, 3 MP
Photo Format
JPG
Video Resolution
2.5k, 1080p, 720p
Video Format
AVI
FOV
10°
Image Sensor
CMOS
Recording during the Day
Color
Recording at Night
Black and White
Display
2-inch IPS screen (320x240)
Battery
Built-in 18650 Lithium battery (2500 mAh)
Charging Port
USB-C
Operating Temperature
−30°C to +55°C (−22°F to +122°F)
Dimensions
170 x 75 x 65 mm
Weight
245 g
Included
1x Night Vision Monocular
1x Card Reader
1x Storage Bag
1x Wrist Strap
1x Lens Cleaning Cloth
1x USB Cable
1x Manual
Designed for environmental monitoring, Enviro+ lets you measure air quality (pollutant gases and particles*), temperature, pressure, humidity, light, and noise level.
Enviro+ is an affordable alternative to environmental monitoring stations that can cost tens of thousands of pounds and, best of all, it's small and hackable and lets you contribute your data to citizen science efforts to monitor air quality via projects like Luftdaten.
Features
BME280 temperature, pressure, humidity sensor (datasheet)
LTR-559 light and proximity sensor (datasheet)
MICS6814 analog gas sensor (datasheet)
ADS1015 analog to digital converter (ADC) (datasheet)
MEMS microphone (datasheet)
0.96' colour LCD (160 x 80)
pHAT-format board
Fully-assembled
Compatible with all 40-pin header Raspberry Pi models
Pinout
Python library
Citizen science air quality monitoring
This board was developed in collaboration with the University of Sheffield, with the aim of letting you contribute real-time air quality data from your local area to open data projects like Luftdaten.
Devices like Enviro+ allow fine-grained, detailed datasets that let us see shifts in air quality through time and across different areas of cities. The dataset gets better in quality every time an additional The more devices that contribute data, the better quality the dataset becomes.
Particulate matter (PM) is made up of tiny particles that are a mix of sizes and types, like dust, pollen, mould spores, smoke particles, organic particles and metal ions, and more. Particulates are much of what we think of as air pollution.
The analog gas sensor can be used to make qualitative measurements of changes in gas concentrations, so you can tell broadly if the three groups of gases are increasing or decreasing in abundance. Without laboratory conditions or calibration, you won't be able to say 'the concentration of carbon monoxide is n parts per million', for example.
Temperature, air pressure and humidity can all affect particulate levels (and the gas sensor readings) too, so the BME280 sensor on Enviro+ is really important to understanding the other data that Enviro+ outputs.
You can implement Enviro+ in IoT applications as well. By connection it to Alexa you can get information about the temperature and humidity of the air by simply asking, or there's also an option to set up a trigger action with IFTTT that turns your Philips Hue lights on when the light level drops below a certain level etc.
Software
With the Python library you can control control all the parts of your Enviro+. There's a bunch of examples for each of the individual parts, an all-in-one example that shows you the data from Enviro+'s sensors in a visual way.
Discover the perfect fusion of science, music, and visual spectacle!
This compact yet powerful musical Tesla coil is designed with an advanced circuit and an upgraded booster top coil to produce long, thick lightning arcs – bringing raw energy to life right before your eyes.
Two Modes for Twice the Fun
Long Arc Mode: Emits lightning at a fixed frequency. At medium power, the arcs are safe to touch – giving only a slight tingling sensation.
Music Mode: Connect via Bluetooth and watch the arcs dance in sync with the music. It plays square wave tones, concentrating the energy into a stunning sparkling melody.
Stable Bluetooth & Smart Design
Equipped with a custom-developed Bluetooth chip, the coil connects smoothly with any smartphone, computer, or Bluetooth-enabled device. It also supports USB-C for added convenience. The coil is coated with a gold-clear ink for improved dust resistance and enhanced durability.
Easy Setup – Instant Magic
No audio cables needed! Just tighten the discharge pin, turn down the power and frequency knobs, plug it in – and watch the magic unfold. Whether placed vertically or horizontally, this Tesla coil puts on a mesmerizing show every time.
Fun Meets Education
More than just a gadget, this Tesla coil is an engaging tool for science education. It can wirelessly light up gas tubes or even bubbles, and the touchable arcs are completely safe to interact with. It's an unforgettable gift and a futuristic piece of art that’ll turn heads on any desk.
Specifications
Body Material
Transparent acrylic
Input Voltage
48 V
Discharge Frequency
5-50 Hz (lightning mode)
Included
Power adapter (EU)
Note: Before powering on, always turn both knobs fully counterclockwise to avoid sudden loud shocks from the arc.
Looking for a fun DIY Christmas project? Assemble and program this extra-large Poly Reindeer figurine and make its LEDs shine all the colors of the rainbow! Ideal for both beginners and advanced makers! This educational and fun kit combines soldering and programming skills in one XL-sized project. First, you will need to solder some simple components onto the copper plated circuit board. The components include fancy RGB LEDs that have a special diffused effect. Once the soldering work is finished, you will be able to program the colors and light effects of the different LEDs thanks to the onboard Arduino Nano Every. The Arduino will be pre-programmed with some basic LED effects, so your kit will work once you power it with the included adaptor. Or you can choose to write your own code based on the available example code. Programmable add-ons The printed circuit board of this project is designed especially so you can add different add-ons. For example, add an OLED screen to display messages or program it to countdown the days until Christmas! Or add an IoT Tuya chip so your project can communicate with your smartphone. You can even add a sound microphone, motion sensor or light sensor. Features XL-sized & copper plated circuit board (PCB) in the shape of a polymetric reindeer 22 addressable (programmable) RGB LEDs 14 x 5 mm RGB LEDs 10 x 8 mm RGB LEDs Arduino Nano Every Onboard push button USB A to USB micro cable for programming USB A to USB B cable for power supply Wooden holder Complete manual and video available in 5 languages Example code for Arduino available Educational & fun for all ages and skill levels Expandable with lots of add-ons: an OLED screen a smart IoT sensor to connect with your smartphone a microphone sensor and more! Not included: soldering iron, soldering tin, pliers and an soldering mat Specifications Dimensions: 168 x 270 mm Power supply: 5 V/2.1 A max. (cable included)
This versatile plotter robot arm DIY kit for Arduino is equipped with MG90S metal gear servo motors to ensure precise and stable drawing movements.
Features
Fully compatible with Arduino IDE, includes complete source code for easy development and customization.
Equipped with robust MG90S metal gear servo motors for accuracy and durability.
Includes a Bluetooth module enabling wireless operation via a dedicated app.
Specially designed robotic arm tip securely holds pens or markers with a diameter of 8-10 mm, ideal for sketches and detailed drawings.
Included
Arduino-compatible Nano motherboard
Nano expansion board
Bluetooth module
MG90S all-metal gear servo motors
Aluminum structural frame
Thickened stable base plate
Screw and fastening accessories
Connecting wires
USB data cable
LoRa-E5 Development Kit is an easy-to-use compact development toolset for you to unlock the powerful performance of the LoRa-E5 STM32WLE5JC. It consists of a LoRa-E5 Dev Board, an antenna (EU868), a USB type C cable, and a 2-AA 3 V Battery Holder. LoRa-E5 Dev Board embedded with LoRa-E5 STM32WLE5JC Module, which is the world-first combo of LoRa RF and MCU chip into one single tiny chip and is FCC and CE certified. It is powered by ARM Cortex-M4 core and Semtech SX126X LoRa chip, supports both LoRaWAN and LoRa protocol on the worldwide frequency and (G)FSK, BPSK, (G)MSK, and LoRa modulations. The LoRa-E5 development board features a very long transmission range, extremely low power consumption and user-friendly interfaces. LoRa-E5 Dev Board has a long-distance transmission range of LoRa-E5 up to 10 km in an open area. The sleep current of LoRa-E5 modules on board is as low as 2.1 uA (WOR mode). It is designed with industrial standards with a wide working temperature at -40℃ ~ 85℃, high sensitivity between -116.5 dBm ~ -136 dBm, and power output up to +20.8 dBm at 3.3 V. LoRa-E5 Dev Board also has rich interfaces. Developed to unlock the full functionality of the LoRa-E5 module, LoRa-E5 Dev Board has led out full 28 pins of LoRa-E5 and provides with rich interfaces including Grove connectors, RS-485 terminal, male/female pin headers for you to connect sensors and modules with different connectors and data protocols, saving your time on wire soldering. You could also easily power the board by connecting the battery holder with 2-AA batteries, enabling temporary use when lacking an external power source. It is a user-friendly board for easy testing and rapid prototyping. Specifications Size LoRa-E5 Dev Board: 85.6 x 54 mm Voltage (supply) 3-5 V (Battery) / 5 V (USB-C) Voltage (output) EN 3V3 / 5 V Power (output) Up to +20.8 dBm at 3.3 V Frequency EU868 Protocol LoRaWAN Sensitivity -116.5 dBm ~ -136 dBm Interfaces USB Type C / JST2.0 / 3x Grove (2x I²C/1x UART) / RS485 / SMA-K / IPEX Modulation LoRa, (G)FSK, (G)MSK, BPSK Working temperature -40℃ ~ 85℃ Current LoRa-E5 module sleep current as low as 2.1 uA (WOR mode) Included 1x LoRa-E5 Dev Board 1x Antenna (EU868) 1x USB Type C Cable (20 cm) 1x 2-AA 3 V Battery Holder
A Retro Roll with a Neon Soul
LED-based dice are common, but their light is cold. Not so for this electronic neon dice, which displays its value with the warm glow of neon lamps. It is perfect for playing games on cold, dark winter evenings. The pips of the dice are neon lamps and the random number generator has six neon lamps to show that it is working.
Even though the dice has an on-board 100-V power supply, it is completely safe. As with all Elektor Classic products, the dice too has its circuit diagram printed on the front while an explanation of how the circuit works can be found on the rear side.
The Neon Lamp Dice comes as a kit of easy-to-solder through-hole parts. The power supply is a 9-V battery (not included).
Features
Warm Vintage Glow
Elektor Heritage Circuit Symbols
Tried & Tested by Elektor Labs
Educational & Geeky Project
Through-Hole Parts Only
Included
Printed Circuit Board
All Components
Wooden Stand
Required
9 V battery
Component List
Resistors (THT, 150 V, 0.25 W)
R1, R2, R3, R4, R5, R6, R14 = 1 MΩ
R7, R8, R9, R10, R11, R12 = 18 kΩ
R13, R15, R16, R17, R18, R21, R23, R24, R25, R26, R28, R30, R33 = 100 kΩ
R32, R34 = 1.2 kΩ
R19, R20, R22, R27, R29 = 4.7 kΩ
R31 = 1 Ω
Capacitors
C1, C2, C3, C4, C5, C6 = 470 nF, 50 V, 5 mm pitch
C7, C9, C11, C12 = 1 µF, 16 V, 2 mm pitch
C8 = 470 pF, 50 V, 5 mm pitch
C10 = 1 µF, 250 V, 2.5 mm pitch
Inductors
L1 = 470 µH
Semiconductors
D1, D2, D3, D4, D5, D6, D7 = 1N4148
D8 = STPS1150
IC1 = NE555
IC2 = 74HC374
IC3 = MC34063
IC4 = 78L05
T1, T2, T3, T4, T5 = MPSA42
T6 = STQ2LN60K3-AP
Miscellaneous
K1 = PP3 9 V battery holder
NE1, NE2, NE3, NE4, NE5, NE6, NE7, NE8, NE9, NE10, NE11, NE12, NE13 = neon light
S2 = Miniature slide switch
S1 = Pushbutton (12 x 12 mm)
YDLIDAR TG15 is a 360-degree two-dimensional rangefinder. Based on the principle of TOF, it is equipped with related optics, electricity, and algorithm design to achieve high-frequency and high-precision distance measurement. The mechanical structure rotates 360 degrees to continuously output the angle information as well as the point cloud data of the scanning environment while ranging.
Features
360 degree omnidirectional scanning ranging distance measurement
Small distance error, stable performance and high accuracy
IP65 protection level
Strong resistance to ambient light interference
Industrial grade brush-less motor drive for stable performance
Laser power meets Class I laser safety standards
5-12 Hz adaptive scanning frequency (support customization)
Photomagnetic fusion technology to achieve wireless communication, wireless power supply
Ranging frequency up to 20 kHz (support customization)
Applications
Robot navigation and obstacle avoidance
Industrial automation
Robot ROS teaching and research
Regional security
Smart transportation
Environmental scanning and 3D reconstruction
Commercial robot /Robot vacuum cleaner
Downloads
Datasheet
User Manual
Development Manual
SDK
Tool
ROS
The Zero Delay Encoder Encoder makes it simple to attach your own arcade joysticks and buttons, and to connect to the Raspberry, PC or other devices. Create your own controller and enjoy your games without any compromises or control your robot project according to your ideas. Features Compatible with Linux, Windows, MAME and other common emulators and systems. Complete controller base with all cables included Supports up to 12 buttons Auto, Fire and Turbo modes Additional connection: Sanwa/Seimitsu 5-Pin LEDs: 1 × Power-LED, 1 × Mode-LED The scope of delivery includes Zero Delay Encoder, USB Cable, 13 × 4.8 mm cable.
NRF24L01 is a universal ISM band monolithic transceiver chip works in the 2.4-2.5 GHz. Features Wireless transceiver including: Frequency generator, enhanced type, SchockBurstTM, mode controller, power amplifier, crystal amplifier, modulator, demodulator The output power channel selection and protocol settings can be set extremely low current consumption, through the SPI interface As the transmit mode, the transmit power is 6 dBm, the current is 9.0 mA, the accepted mode current is 12.3 mA, the current consumption of the power-down mode and standby mode are lower Built-in 2.4 GHz antenna, supports up to six channels of data reception Size: 15 x 29 mm (including antenna)
Here you will find all kinds of parts, components and accessories you will need in various projects, starting from simple wires, sensors and displays to already pre-assembled modules and kits.
