Search results for "rfm95 OR ultra OR lora OR transceiver OR module OR 868 OR 915 OR mhz"

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.

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This fiberglass outdoor antenna is optimized for receiving signals in the 868 MHz ISM band, supporting technologies such as Sigfox, LoRa, Mesh Networks, and Helium. The antenna consists of a half-wave dipole with 4.4 dBi gain, encapsulated inside a fiberglass radome with an aluminum mounting base. Specifications Frequency 868-870 MHz Antenna type Dipole 1/2 wave Connector N female Installation type Mast Diam 35-60 mm (mounting bracket included) Gain 4.4 dBi SWR ≤1.5 Type of Polarization Vertical Maximum power 10 W Impedance 50 Ohms Dimensions 52.5 cm Tube diameter 26 mm Base antenna 32 mm Operating temperature −30°C to +60°C Included ISM Band Antenna (868 Mhz) Mast bracket (for installation on a 35 to 60 mm diameter mast)

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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)

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This is a 170 mm long 868 MHz 50 hm antenna kit targeted for use with iLabs Challenger LoRa products. The antenna can tilt and swivel making it easy to install it in various applications. The kit also comes with a RF cable assembly containing an SMA (Female) and JK-IPEX/MHF/U.FL for connection to the PCB. The coax is a 1-13 mm 50 Ohm cable and is 100 mm’s long.

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LoRaWAN is beneficial, but sometimes it is unnecessary, difficult, or expensive to implement a LoRaWAN network, especially when considering cloud integration. For example, monitoring soil moisture in your backyard or tracking conditions in your farm's greenhouse may not require a full LoRaWAN setup. This LoRa receiver is designed to work with Makerfabs SenseLora modules. It receives LoRa signals and forwards them to a computer, allowing the data to be displayed, recorded, and analyzed on the computer. Downloads Manual Software

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The Challenger RP2040 LoRa is an Arduino/CircuitPython compatible Adafruit Feather format microcontroller board based on the Raspberry Pi Pico (RP2040) chip.The transceiver features a LoRa long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.LoRaThe integrated module LoRa module (RFM95W) can achieve a sensitivity of over -148 dBm utilizing 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. LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption.The RFM95W is connected to the RP2040 via SPI channel 1 and a few GPIO’s that is required for signaling. A U.FL connector is used to attach your LoRa antenna to the board. 168 dB maximum link budget +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 Excellent blocking immunity Low RX current of 10.3 mA, 200 nA register retention Fully integrated synthesizer with a resolution of 61 Hz FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation Built-in bit synchronizer for clock recovery Preamble detection 127 dB Dynamic Range RSSI Automatic RF Sense and CAD with ultra-fast AFC Packet engine up to 256 bytes with CRC Specifications Microcontroller RP2040 from Raspberry Pi (133 MHz dual-core Cortex-M0) SPI Two SPI channels configured (second SPI connected to RFM95W) I²C One I²C channel configured UART One UART channel configured Analog inputs 4 analog input channels Radio module RFM95W from Hope RF Flash memory 8 MB, 133 MHz SRAM memory 264 KB (divided into 6 banks) USB 2.0 controller Up to 12 MBit/s full speed (integrated USB 1.1 PHY) JST Battery connector 2.0 mm pitch On board LiPo charger 450 mA standard charge current Dimensions 51 x 23 x 3,2 mm Weight 9 g Downloads Datasheet Design files

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The Arduino Pro Portenta Vision Shield LoRa brings industry-rated features to your Portenta. This hardware add-on will let you run embedded computer vision applications, connect wirelessly via LoRa to the Arduino Cloud or your own infrastructure, and activate your system upon the detection of sound events. The shield comes with: a 320x320 pixels camera sensor: use one of the cores in Portenta to run image recognition algorithms using the OpenMV for Arduino editor long range 868/915 MHz LoRa wireless connectivity: get your Portenta H7 connected to the Internet of Things with low power consumption two on-board microphones for directional sound detection: capture and analyse sound in real-time JTAG connector: perform low-level debugging of your Portenta board or special firmware updates using an external programmer SD-Card connector: store your captured data in the card, or read configuration files The Vision Shield LoRa has been designed to work with the Arduino Portenta H7. The Portenta boards feature multicore 32-bit ARM Cortex processors running at hundreds of megahertz, with megabytes of program memory and RAM. Portenta boards come with WiFi and Bluetooth. Specifications Camera Himax HM-01B0 camera module (manufacturer site) Resolution 320 x 320 active pixel resolution with support for QVGA Image sensor High sensitivity 3.6μ BrightSense pixel technology Microphone 2x MP34DT05 (datasheet) Connectivity 868/915MHz ABZ-093 LoRa Module with ARM Cortex-M0+ (datasheet) Dimensions 66 x 25 mm Weight 8 g Downloads Datasheet Schematics

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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

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The HT-M00 is a dual-channel gateway that is specifically designed to cater to smart family LoRa applications that work with less than 30 LoRa nodes. The gateway has been built around two SX1276 chips that are driven by ESP32. To enable monitoring of 125 KHz SF7~SF12 spreading factor, a software mixer has been developed, which is commonly referred to as a baseband simulation program. The software mixer is a critical component that enables the HT-M00 gateway to operate with high efficiency. It is designed to simulate baseband signals, which are then mixed with the radio frequency signals to produce the desired output. The software mixer has been developed with great care and precision, and has undergone rigorous testing to ensure that it is capable of delivering accurate and reliable results. Features ESP32 + SX1276 Emulates LoRa demodulators Automatic adaptive spread spectrum factor, SF7 to SF12 for each channel is optional Maximum output: 18 ±1dBm Support for LoRaWAN Class A, Class C protocol Specifications MCU ESP32-D0WDQ6 LoRa Chipset SX1276 LoRa Band 863~870 MHz Power Supply Voltage 5 V Receiving Sensitivity -110 dBm @ 300 bps Interface USB-C Max. TX Power 17dB ±1dB Operating Temperature −20~70°C Dimensions 30 x 76 x 14 mm Included 1x HT-M00 Dual Channel LoRa Gateway 1x Wall bracket 1x USB-C cable Downloads Manual Software Documentation

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