Plug a reader into the headers, use a Qwiic cable, scan your 125kHz ID tag, and the unique 32-bit ID will be shown on the screen. The unit comes with a read LED and buzzer, but don't worry, there is a jumper you can cut to disable the buzzer if you want. Utilizing SparkFun's handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins if you prefer to use a breadboard.
Utilizing the onboard ATtiny84A, the Qwiic RFID takes the six byte ID tag of your 125kHz RFID card, attaches a timestamp to it, and puts it onto a stack that holds up to 20 unique RFID scans at a time. This information is easy to get at with some simple I²C commands.
The Sparkfun Qwiic GPIO is an I²C device based around the TCA9534 I/O Expander IC from Texas Instruments. The board adds eight IO pins that you can read and write just like any other digital pin on your controller. The details of the I²C interface have been taken care of in an Arduino library so you can call functions similar to Arduino's pinMode and digitalWrite, allowing you to focus on your creation! The TCA9534's pins are broken out to easy-to-use latch terminals; never screw another wire into place! The terminals are relatively roomy themselves, so feel free to latch multiple wires into a ground or power terminal. With three customizable address jumpers, you can have up to eight Qwiic GPIO boards connected on a single bus allowing upwards of 64 additional GPIO pins! The default I²C is 0x27 and can be changed by adjusting the jumpers on the board's back. Features Eight Configurable GPIO Pins Available I²C Address: 0x27 (Default) Hardware address pins allow up to eight boards on a single bus Input Polarity Inversion Register Control each I/O pin individually or all at once Open-Drain Active-Low Interrupt Output 2x Qwiic Connectors Dimensions: 60.96 x 38.10 mm
Input Voltage: 12 - 36 V Max. Phase Current: 2 A per phase Removable motor drivers Reset-button Screw terminals for power supply Dimensions: 53 mm x 68 mm x 18 mm Weight: 46 g
This PCIe 3.0 to dual M.2 HAT enables the Raspberry Pi 5 to access two NVMe SSDs, Hailo-8/8L (M.2 key B+M only), and Google Coral AI accelerators at PCIe 3.0 speeds.
Features
Dual M.2 Slots with PCIe 3.0 Speed: Utilizes the ASMedia ASM2806 PCIe 3.0 switch chip to ensure optimal performance, overcoming the limitations of PCIe 2.0.
Stable Power Supply: Additional pogo pins provide extra power to ensure a stable high-speed connection.
Multiple Size Support: Compatible with M.2 standard sizes 2230, 2242, 2260, and 2280.
Back-mounted Design: Keeps the 40-pin GPIO free for use, allowing compatibility with other Raspberry Pi HATs.
User-friendly Design: The S-shaped FPC cable does not obstruct the microSD card slot.
Open Source Case: Seeed’s M.2 HATs are not compatible with the official Raspberry Pi case, but an adapted 3D-printable case (STP file) is provided.
Applications
Simultaneously supports AI acceleration and high-speed SSD storage
Connects dual NVMe SSDs for large storage capacity
Booting a Raspberry Pi from the SSD
Specifications
M.2 Slots
2
Max. PCIe Speed
PCIe Gen3.0
PCIe Switch Chip
ASM2806
M.2 Size Support
2280/2260/2242/2230
Max. Power Supply
5 V/3 A (max 3A: Pogo pin 2A + PCIe connector 1A)
Cable
FPC
Assembly Method
Back installation
Dimensions
87 x 55 x 10 mm
Included
1x Seeed Studio PCIe 3.0 to Dual M.2 HAT for Raspberry Pi 5
2x FPC cables (50 mm)
1x Screws & stud pack
Downloads
Wiki
The JOY-iT JDS2960 is a 2-channel signal generator capable of producing signals up to 60 MHz. Its compact design and the option to operate it with a power bank make it ideal for mobile use.
With a variety of waveforms, including sine, square, triangle, pulse, half-wave, and more, it is suitable for various measurement technology applications.
Additionally, the JDS2960 features a 1-channel frequency allocation. Its high frequency accuracy of ±20 ppm and stability of ±1 ppm/3 h ensure excellent signal quality and great flexibility.
The 2.4-inch TFT color display provides user-friendly operation and enables a wide range of applications.
Features
2 Channels
Up to 60 MHz
Robust aluminum housing
1-channel frequency counter
Up to 20 Vpp
Many different pre-programmed waveforms and up to 60 user-defined waveforms
Pulse function
Specifications
Channels
2-channel Signal Generator1-channel Frequency meter
Frequency range
Sine: 0-60 MHzSquare, triangle: 0-25 MHzTTL, Pulse: 0-6 MHz
Signal forms
Sine, square, triangle, pulse, half/solid wave, exponential rise/fall, etc.
Measuring range frequency counter
1-100 MHz
Frequency accuracy
±20 ppm
Frequency stability
±1 ppm/3 h
Sampling rate
266 MSa/s
Display
2,4" TFT color LCD
Vertical shaft resolution
14 bits
Amplitude range
<10 MHz: 0-20 Vpp>10 MHz: 0-10 Vpp
Amplitude resolution
1 mV
Amplitude stability
±5%/5h
Amplitude flatness
<10 MHz: ±5%>10 MHz: ±10%
Impedance of output
50 Ω ±10%
Distortion factor
<0.8% (20 Hz-20 KHz, 0 dBm)
Dimensions
145 x 95 x 55 mm
Weight
900 g
Included
1x JOY-iT JDS2960 2-ch Signal Generator
1x Power supply unit
1x BNC-BNC cable
2x BNC crocodile clip cables
1x USB-DC power cable
1x USB data cable
Downloads
Datasheet
Manual
Software
The LILYGO T-Display-S3 Long is a versatile development board powered by the ESP32-S3R8 dual-core LX7 microprocessor. It features a 3.4-inch capacitive touch TFT LCD with a resolution of 180x640 pixels, providing a responsive interface for various applications.
This board is ideal for developers seeking a compact yet powerful solution for projects requiring touch input and wireless communication. Its compatibility with popular programming environments ensures a smooth development experience.
Specifications
MCU
ESP32-S3R8 Dual-core LX7 microprocessor
Wireless Connectivity
Wi-Fi 802.11, BLE 5 + BT Mesh
Programming Platform
Arduino IDE, VS Code
Flash
16 MB
PSRAM
8 MB
Bat voltage detection
IO02
Onboard functions
Boot + Reset Button, Battery Switch
Display
3.4" Capacitive Touch TFT LCD
Color depth
565, 666
Resolution
180 x 640 (RGB)
Working power supply
3.3 V
Interface
QSPI
Included
1x T-Display S3 Long
1x Power cable
2x STEMMA QT/Qwiic interface cable (P352)
1x Female pin (double row)
Downloads
GitHub
The EC200U-EU C4-P01 development board features the EC200U-EU LTE Cat 1 wireless communication module, offering a maximum data rate of up to 10 Mbps for downlink and 5 Mbps for uplink. It supports multi-mode and multi-band communication, making it a cost-effective solution.
The board is designed in a compact and unified form factor, compatible with the Quectel multi-mode LTE Standard EC20-CE. It includes an onboard USB-C port, allowing for easy development with just a USB-C cable.
Additionally, the board is equipped with a 40-pin GPIO header that is compatible with most Raspberry Pi HATs.
Features
Equipped with EC200U-EU LTE Cat 1 wireless communication module, multi-mode & multi-band support
Onboard 40-Pin GPIO header, compatible with most Raspberry Pi HATs
5 LEDs for indicating module operating status
Supports TCP, UDP, PPP, NITZ, PING, FILE, MQTT, NTP, HTTP, HTTPS, SSL, FTP, FTPS, CMUX, MMS protocols, etc.
Supports GNSS positioning (GPS, GLONASS, BDS, Galileo, QZSS)
Onboard Nano SIM card slot and eSIM card slot, dual card single standby
Onboard MIPI connector for connecting MIPI screen and is fully compatible with Raspberry Pi peripherals
Onboard camera connector, supports customized SPI cameras with a maximum of 300,000 pixels
Provides tools such as QPYcom, Thonny IDE plugin, and VSCode plugin, etc. for easy learning and development
Comes with online development resources and manual (example in QuecPython)
Specifications
Applicable Regions
Europe, Middle East, Africa, Australia, New Zealand, Brazil
LTE-FDD
B1, B3, B5, B7, B8, B20, B28
LTE-TDD
B38, B40, B41
GSM / GPRS / EDGE
GSM: B2, B3, B5, B8
GNSS
GPS, GLONASS, BDS, Galileo, QZSS
Bluetooth
Bluetooth 4.2 (BR/EDR)
Wi-Fi Scan
2.4 GHz 11b (Rx)
CAT 1
LTE-FDD: DL 10 Mbps; UL 5 Mbps
LTE-TDD: DL 8.96 Mbps; UL 3.1 Mbps
GSM / GPRS / EDGE
GSM: DL 85.6 Kbps; UL 85.6 Kbps
USB-C Port
Supports AT commands testing, GNSS positioning, firmware upgrading, etc.
Communication Protocol
TCP, UDP, PPP, NITZ, PING, FILE, MQTT, NTP, HTTP, HTTPS, SSL, FTP, FTPS, CMUX, MMS
SIM Card
Nano SIM and eSIM, dual card single standby
Indicator
P01: Module Pin 1, default as EC200A-XX PWM0
P05: Module Pin 5, NET_MODE indicator
SCK1: SIM1 detection indicator, lights up when SIM1 card is inserted
SCK2: SIM2 detection indicator, lights up when SIM2 card is inserted
PWR: Power indicator
Buttons
PWK: Power ON/OFF
RST: Reset
BOOT: Forcing into firmware burning mode
USB ON/OFF: USB power consumption detection switch
Antenna Connectors
LTE main antenna + DIV / WiFi (scanning only) / Bluetooth antenna + GNSS antenna
Operating Temperature
−30~+75°C
Storage Temperature
−45~+90°C
Downloads
Wiki
Quectel Resources
Learn the basics of electronics by assembling manually your Arduino Uno, become familiar with soldering by mounting every single component, and then unleash your creativity with the only kit that becomes a synth!
The Arduino Make-Your-Uno kit is really the best way to learn how to solder. And when you are done, the packaging allows you to build a synth and make your music.
A kit with all the components to build your very own Arduino Uno and audio synthesizer shield.
The Make-Your-Uno kit comes with a complete set of instructions in a dedicated content platform. This includes video material, a 3D interactive viewer for following detailed instructions, and how to program your board once it is finished.
This kit contains:
Arduino Make-Your-Uno
1x Make-Your-Uno PCB
1x USB C Serial adapter Board
7x Resistors 1k Ohm
2x Resistors 10k Ohm
2x Resistors 1M Ohm
1x Diode (1N4007)
1x 16 MHz Crystal
4x Yellow LEDs
1x Green LED
1x Push-Button
1x MOSFET
1x LDO (3.3 V)
1x LDO (5 V)
3x Ceramic capacitors (22pF)
3x Electrolytic capacitors (47uF)
7x Polyester capacitors (100nF)
1x Socket for ATMega 328p
2x I/O Connectors
1x Connector header 6 pins
1x Barrel jack connector
1x ATmega 328p Microcontroller
Arduino Audio Synth
1x Audio Synth PCB
1x Resistor 100k Ohm
1x Resistor 10 Ohm
1x Audio amplifier (LM386)
1x Ceramic capacitors (47nF)
1x Electrolytic capacitors (47uF)
1x Electrolytic capacitors (220uF)
1x Polyester capacitor (100nF)
4x connectors pin header
6x potentiometer 10k Ohm with plastic knobs
Spare parts
2x Electrolytic capacitors (47uF)
2x Polyester capacitor (100nF)
2x Ceramic capacitors (22pF)
1x Push-Button
1x Yellow LEDs
1x Green LED
Mechanical parts
5x Spacers 12 mm
11x Spacers 6 mm
5x screw nuts
2x screws 12 mm
This 900 MHz radio version can be used for either 868 MHz or 915 MHz transmission/reception – the exact radio frequency is determined when you load the software since it can be tuned around dynamically.
At the Feather 32u4's heart is at ATmega32u4 clocked at 8 MHz and at 3.3 V logic. This chip has 32 K of flash and 2 K of RAM, with built in USB so not only does it have a USB-to-Serial program & debug capability built in with no need for an FTDI-like chip, it can also act like a mouse, keyboard, USB MIDI device, etc.
To make it easy to use for portable projects, we added a connector for any 3.7 V Lithium polymer batteries and built in battery charging. You don't need a battery, it will run just fine straight from the micro USB connector. But, if you do have a battery, you can take it on the go, then plug in the USB to recharge. The Feather will automatically switch over to USB power when its available. We also tied the battery thru a divider to an analog pin, so you can measure and monitor the battery voltage to detect when you need a recharge.
Features
Measures 2.0' x 0.9' x 0.28' (51 x 23 x 8 mm) without headers soldered in
Light as a (large?) feather – 5.5 grams
ATmega32u4 @ 8 MHz with 3.3 V logic/power
3.3 V regulator with 500 mA peak current output
USB native support, comes with USB bootloader and serial port debugging
You also get tons of pins – 20 GPIO pins
Hardware Serial, hardware I²C, hardware SPI support
7x PWM pins
10x analog inputs
Built in 100 mA lipoly charger with charging status indicator LED
Pin #13 red LED for general purpose blinking
Power/enable pin
4 mounting holes
Reset button
The Feather 32u4 Radio uses the extra space left over to add an RFM69HCW 868/915 MHz radio module. These radios are not good for transmitting audio or video, but they do work quite well for small data packet transmission when you ned more range than 2.4 GHz (BT, BLE, WiFi, ZigBee)
SX1231 based module with SPI interface
Packet radio with ready-to-go Arduino libraries
Uses the license-free ISM band ('European ISM' @ 868 MHz or 'American ISM' @ 915 MHz)
+13 to +20 dBm up to 100 mW Power Output Capability (power output selectable in software)
50 mA (+13 dBm) to 150 mA (+20 dBm) current draw for transmissions
Range of approx. 350 meters, depending on obstructions, frequency, antenna and power output
Create multipoint networks with individual node addresses
Encrypted packet engine with AES-128
Simple wire antenna or spot for uFL connector
Comes fully assembled and tested, with a USB bootloader that lets you quickly use it with the Arduino IDE. Headrs are also included so you can solder it in and plug into a solderless breadboard. You will need to cut and solder on a small piece of wire (any solid or stranded core is fine) in order to create your antenna.
Lipoly battery and USB cable not included.
The Power Delivery Board uses a standalone controller to negotiate with the power adapters and switch to a higher voltage other than just 5V. This uses the same power adapter for different projects rather than relying on multiple power adapters to provide different output; it can deliver the board as part of SparkFun’s Qwiic connect system, so you won’t have to do any soldering to figure out how things are oriented.
The SparkFun Power Delivery Board takes advantage of the power delivery standard using a standalone controller from STMicroelectronics, the STUSB4500. The STUSB4500 is a USB power delivery controller that addresses sink devices. It implements a proprietary algorithm to negotiate a power delivery contract with a source (i.e. a power delivery wall wart or power adapter) without the need for an external microcontroller. However, you will need a microcontroller to configure the board. PDO profiles are configured in an integrated non-volatile memory. The controller does all the heavy lifting of power negotiation and provides an easy way to configure over I²C.
To configure the board, you will need an I²C bus. The Qwiic system makes it easy to connect the Power Delivery board to a microcontroller. Depending on your application, you can also connect to the I²C bus via the plated through SDA and SCL holes.
Features
Input and output voltage range of 5-20V
Output current up to 5A
Three configurable power delivery profiles
Auto-run Type-C™ and USB PD sink controller
Certified USB Type-C™ rev 1.2 and USB PD rev 2.0 (TID #1000133)
Integrated VBUS voltage monitoring
Integrated VBUS switch gate drivers (PMOS)
LuckFox Pico Mini is a compact Linux micro development board based on the Rockchip RV1103 chip, providing a simple and efficient development platform for developers. It supports a variety of interfaces, including MIPI CSI, GPIO, UART, SPI, I²C, USB, etc., which is convenient for quick development and debugging.
Features
Single-core ARM Cortex-A7 32-bit core with integrated NEON and FPU
Built-in Rockchip self-developed 4th generation NPU, features high computing precision and supports int, int8, and int16 hybrid quantization. The computing power of int8 is 0.5 TOPS, and up to 1.0 TOPS with int4
Built-in self-developed third-generation ISP3.2, supports 4-Megapixel, with multiple image enhancement and correction algorithms such as HDR, WDR, multi-level noise reduction, etc.
Features powerful encoding performance, supports intelligent encoding mode and adaptive stream saving according to the scene, saves more than 50% bit rate of the conventional CBR mode so that the images from camera are high-definition with smaller size, double the storage space
Built-in RISC-V MCU supports low power consumption and fast start-up, supports 250 ms fast picture capture and loading Al model library at the same time to realize face recognition "in one second"
Built-in 16-bit DRAM DDR2, which is capable of sustaining demanding memory bandwidths
Integrated with built-in POR, audio codec and MAC PHY
Specifications
Processor
ARM Cortex-A7, single-core 32-bit CPU, 1.2 GHz, with NEON and FPU
NPU
Rockchip 4th-gen NPU, supports int4, int8, int16; up to 1.0 TOPS (int4)
ISP
Third-gen ISP3.2, up to 4 MP input at 30fps, HDR, WDR, noise reduction
RAM
64 MB DDR2
Storage
128 MB SPI NAND Flash
USB
USB 2.0 Host/Device via Type-C
Camera Interface
MIPI CSI 2-lane
GPIO Pins
17 GPIO pins
Power Consumption
Low power, RISC-V MCU for fast startup
Dimensions
28 x 21 mm
Downloads
Wiki
The PoE HAT (G) is an IEEE 802.3af/at-compliant PoE (Power Over Ethernet) HAT for Raspberry Pi 5. By using with a PoE router or switch that supports the IEEE 802.3af/at network standard, it is possible to provide both network connection and power supply for your Raspberry Pi in only one Ethernet cable.
Features
Standard Raspberry Pi 40-pin GPIO header
PoE capability, IEEE 802.3af/at-compliant
Onboard original IC solution for more stable PoE power performance
Adopts non-isolated switched-mode power supply (SMPS)
Compact and easy to assemble
Specifications
PoE power input
38~57 V DC in
Power output
GPIO header: 5 V/5 A (max)
Network standard
IEEE 802.3af/at PoE
Dimensions
56.5 x 64.98 mm
Included
1x PoE HAT (G)
1x 2x2 header
1x 2x20 header
1x Standoffs pack
Downloads
Wiki
If you are looking for a simple way to learn soldering, or just want to make a small gadget that you can carry, this set is a great opportunity. Stop me game is an educational kit which teaches you how to solder, and in the end, you get to have your own small game. The LEDs go up and down, and your goal is to press the button as soon as the green LED turns on. With every correct answer, the game gets a bit harder – the time you have to press the button shortens. How many correct answers can you get?
It’s based on ATtiny404 microcontroller, programmed in Arduino. At its back, you’ll find CR2032 battery which makes the kit portable. There’s keychain holder as well. Soldering process is easy enough based on the mark on the PCB.
Included
1x PCB
1x ATtiny404 microcontroller
7x LEDs
1x Pushbutton
1x Switch
7x Resistors (330 ohm)
1x CR2032 battery holder
1x Battery CR2032
1x Keychain holder
W6100-EVB-Pico is a microcontroller evaluation board based on the Raspberry Pi RP2040 and fully hardwired TCP/IP controller W6100 – and basically works the same as Raspberry Pi Pico board but with additional Ethernet via W6100. Features RP2040 microcontroller with 2 MByte Flash Dual-core cortex M0+ at up to 133 MHz 264 kByte multi-bank high performance SRAM External Quad-SPI Flash with eXecute In Place (XIP) High performance full-crossbar bus fabric 30 multi-function General Purpose I/O (4 can be used for ADC) 1.8-3.3 V I/O voltage (Note: Pico I/O voltage is fixed at 3.3 V) 12-bit 500 ksps Analogue to Digital Converter (ADC) Various digital peripherals 2x UART, 2x I²C, 2x SPI, 16x PWM channels 1x Timer with 4 alarms, 1x Real Time Counter 2x Programmable IO (PIO) blocks, 8 state machines total Flexible, user-programmable high-speed I/O Can emulate interfaces such as SD card and VGA Includes W6100 Supports Hardwired Internet Protocols: TCP, UDP, IPv6, IPv4, ICMPv6, ICMPv4, IGMP, MLDv1, ARP, PPPoE Supports 8 independent SOCKETs simultaneously with 32 KB memory Internal 16 Kbytes Memory for TX/RX Buffers SPI Interface Micro-USB B port for power and data (and for reprogramming the Flash) 40-pin 21x51 ‘DIP’ style 1 mm thick PCB with 0.1' through-hole pins also with edge castellations 3-pin ARM Serial Wire Debug (SWD) port 10 / 100 Ethernet PHY embedded Supports Auto Negotiation Full / Half Duplex 10 / 100 Based Built-in RJ45 (RB1-125BAG1A) Built-in LDO (LM8805SF5-33V) Downloads Documents Getting started on GitHub Firmware
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.
A low-power, open source, 2.7-inch IoT display powered by an ESP32-S2 module and featuring SHARP's Memory-in-Pixel (MiP) screen technology
The Newt is a battery-powered, always-on, wall-mountable display that can go online to retrieve weather, calendars, sports scores, to-do lists, quotes…really anything on the Internet! It is powered by an ESP32-S2 microcontroller that you can program with Arduino, CircuitPython, MicroPython, or ESP-IDF. It's perfect for makers:
Sharp’s Memory-in-Pixel (MiP) technology avoids the slow refresh times associated with E-Ink displays
A real-time clock (RTC) was added to support timers and alarms
The Newt was designed with battery operation in mind; every component on the board was chosen for its ability to operate at low power.
Newt was designed to operate 'untethered,' which means it can be mounted in places where a power cord would be inconvenient, for example a wall, refrigerator, mirror, or dry-erase board. With the optional stand, desks, shelves, and nightstands are also good options.
Newt is open source, and all design files and libraries are available for review, use, and modification. However, doing that is not required. Each Newt is delivered with working code with the following features:
Current weather details
Hourly and daily weather forecast
Alarm
Timer
Inspirational quotes
Air-quality forecast
Habit calendar
Pomodoro timer
Oblique Strategy cards
Only following the Wi-Fi provisioning instructions is needed to get started. No app downloads are required.
Specifications
Display
Sharp Memory LCD
Screen Size
2.7 inch
Resolution
240 x 400
Deep Sleep Current
30 uA
Refresh Rate
< 0.001 s
Periodic Screen Refresh Required
No
Input Buttons
10 capacitive pads, 1 push button
RTC included
Yes
Speaker included
Yes
Power Input
USB Type-C
Battery included
No
Programming Languages
Arduino, CircuitPython, ESP IDF, MicroPython
Dimensions
91 x 61 x 9 mm
Microcontroller
Espressif ESP32-S2-WROVER Module with 4 MB flash and 2 MB PSRAM
Wi-Fi capable
Supports Arduino, MicroPython, CircuitPython, and ESP-IDF
Deep sleep current as low as 25 μA
Display
2.7-inch, 240 x 400 pixel MiP LCD
Capable of delivering high-contrast, high-resolution, low-latency content with ultra-low power consumption
Reflective mode leverages ambient light to eliminate the need for a backlight
Time Keeping, Timers, and Alarms
Micro Crystal RV-3028-C7 RTC
Optimized for extreme low-power consumption (45 μA)
Able to simultaneously manage a periodic timer, a countdown timer, and an alarm
Hardware interrupt for timers and alarms
43 bytes of non-volatile user memory, 2 bytes of user RAM
Separate UNIX time counter
Buzzer
Speaker/buzzer with mini class-D amplifier on DAC output A0 can play tones or lo-fi audio clips
User Input
Power switch
Two programmable tactile buttons for Reset and Boot
10 capacitive touchpads
Power
Newt is designed to operate for one to two months between charges using a 500 mAH LiPo battery. The exact run time varies. (Heavy Wi-Fi use, in particular, will reduce battery charge more quickly.)
USB Type-C connector for programming, power, and charging
Low-quiescence voltage regulator (TOREX XC6220) that can output 1 A of current and operate as low as 8 μA.
JST connector for a Lithium-Ion battery
Battery-charging circuity (MCP73831)
Low-battery indicator (1 μA quiescence current)
Software
Newt hardware is compatible with open-source Arduino libraries for ESP32-S2, Adafruit GFX (fonts), Adafruit Sharp Memory Display (display writing), and RTC RV-3028-C7 (RTC)
Arduino libraries and sample programs are under development and will be available in our GitHub repository before launch
CircuitPython libraries and registration are on the roadmap, with the development of a CircuitPython library for the RV-3028 real-time clock as a key dependency
Included
Phambili Newt – Fully assembled with pre-loaded firmware
Laser-cut desktop stand
Mini-magnet feet
Required screws
Support & Documentation
Full instructions for use
GitHub: Arduino Library and Codebase
GitHub: Board schematics
Videos of prototypes or demos (build tracked on Hackaday)
YDLIDAR T-mini Pro is a 360-degrees 2D LiDAR based on the principle of ToF. It is equipped with related optics, electricity, and algorithm design to achieve high-precision laser distance measurement, while measuring the distance, the mechanical structure rotates 360 degrees to continuously obtain angle information, thereby realizing 360 degrees scanning distance measurement and outputting point cloud data of the scanning environment.
Features
It adopts the mature ToF detection principle, it can be easy to integrate into the whole device with a small size, bringing the robot a 360° two-dimensional environment with strong stability and high precision.
6-12 Hz self-adaptive scanning frequency, the speed can be adjusted independently according to functional needs. The mechanical structure rotates 360°, continuously obtains angle information, scans and measures in all directions, and outputs point cloud.
Smaller appearance and lower power consumption, which can greatly optimize the spatial structure of application products and are suitable for more scenarios.
The brushless motor operates efficiently and has a longer lifespan of 10,000 hours.
Specifications
Range distance: 0.02-12 m
Range frequency: 4000 Hz
Angle resolution: 0.54 degrees
Scan frequency: 6-12 Hz
Scan angle: 360 degrees
Interface: UART
Applications
Robot navigation and obstacle avoidance
Robot ROS teaching and research
Regional security
Environmental scanning and 3D reconstruction
Navigation and obstacle avoidance of home service robots/ robot vacuum cleaners
Downloads
Datasheet
Manual
Development Manual
SDK
Tool
ROS
This kit is based on ESP32 and LoRa. The ESP32 3.5" display is the console for the system, it receives the LoRa message from LoRa moisture sensors (support up to 8 sensors in the default firmware), and send control commands to LoRa 4-channel MOSFET (2 4-channel MOSFET supported, with totally 8 channels), to control the connected valves open/close, and thus to control the irrigation for multiple points.
Features
Ready to use: Firmware are pre-programmed for all the modules before shipping, the user can only power them up and set the ID to the console, and start to use. Suitable for none-programmers, in 3 minutes to create filed application.
With Lora wireless connection: The monitor & control range can be up to few kilometer, suitable for garden/small farm.
Soil moisture sensor with good corrosion resistance, can be used at least half an year with 2 AAA battery.
Easy to install: Compares to cheap solution with wires, which is hard to implement in files application, there the connection wires do not needed, the whole installation clean and easy; The valves can be connected Lora MOSFET easily.
Hardware & Software Open: To study Lora & FreeRTOS. The ESP32 display console/Lora Soil Moisture Sensor/LoRa MOSFE are all programmed with Arduino. For programmers/engineers, can development further more specialized application.
Based on ESP32, with WiFi connection, the console can also access to internet, the create much more applications including the moisture data updating to internet for remote monitor, and remote control with MQTT.
Included
1x ESP32 3.5' Display (without camera)
1x Lora Expansion for ESP32 Display
2x Lora Moisture Sensor
1x Lora 4-channel MOSFET
1x 12 V Power Supply
Water Pipe (5 m)
1x 1-input & 4-output Pipe Joint
Downloads
Instructable: Soil Monitoring & Irrigation with LoRa
GitHub
Arduino, MicroPython, and CircuitPython-compatible compact development board powered by Raspberry Pi RP2040
RP2040-0.42LCD is a high-performance development board with integrated 0.42" LCD (70x40 resolution) with flexible digital interfaces.
It incorporates Raspberry Pi's RP2040 microcontroller chip. The RP2040 features a dual-core Arm Cortex-M0+ processor clocked at 133 MHz with 264 KB internal SRAM and 2 MB flash storage.
Specifications
SoC
Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller at up to 125 MHz, with 264 KB SRAM
Storage
2 MB SPI flash
Display
0.42-inch OLED
USB
1x USB Type-C port for power and programming
Expansion
– Qwiic I²C connector– 7-pin and 8-pin headers with up to 11x GPIOs, 2x SPI, 2x I²C, 4x ADC, 1x UART, 5 V, 3.3 V, VBAT, GND
Misc
– Reset and Boot buttons– RGB LED, power LED
Power supply
– 5 V via USB-C port or Vin– VBAT pin for battery input– 3.3 V regulator with 500 mA peak output
Dimensions
23.5 x 18 mm
Weight
2.5 g
Downloads
GitHub
Free up your hands and secure and protect your soldering projects with Weller's Helping Hands with 4 Magnetic Arms. Enjoy adjustable and flexible positions with magnetic gooseneck arms with alligator clamps that are easily positionable for multiple configurations. Applications Hobby Home repair Drone Audio repair Joining wires Engraving Jewelry making Electronics Specifications Dimensions (Base) 152 x 229 mm (6 x 9') Length (Arms) 2 arms: 216 mm (8.5')2 arms: 317 mm (12.5')
This kit contains everything needed to start learning about connecting electronics to the micro:bit in an accessible and easy manner. Everything is connected using the supplied alligator clips, so no soldering required.
Included
MonkMakes Speaker for micro:bit
MonkMakes Switch for micro:bit
MonkMakes Sensor Board for micro:bit
Set of alligator clip leads (10 leads)
Small motor with fan
Single AA battery box (battery not included)
Light bulb and holder
Booklet (A5)
Downloads
Instructions
Datasheet
Lesson Plans