The Raspberry Pi 3 - even faster than the Pi 2, 1 Giga of RAM, WiFi...
25 Max. per order Raspberry-Pi Pico Microcontoler RP2040 Cortex M0+ @...
Assortment of BreadBoard wires Female-Female 300mm and 75 mm + Long...
75 extra flexible prototyping wires for breadboard
MAX PURCHASE 2 per person during global component back-out period The...
Prototyping and e-learning platform for creating interactive objects or...
Wind Direction device High quality, High Accuracy Professionnal...
Electric Push Rod Push length: 100mm Volt: 6V Force: 128 N
IDC 2x20 Female connector TO FPC 40 pins ribbon at 0.5mm spacing
Connecteur IDC Male 2x20 pins FPC 40 lines connector @ 0.5mm
NE555 timer 100 KHz Max 4.5 ~ 16V 10mA DIP 8
NTC / CTN Thermistor -55°C à 300°C 10 KOhms GT103J1K
6V Air Valve 2 Pins JST PH connector 1 common port 2 ways FA0520E
Weight / Force sensor 0 to 1 Kg HX711 amplifier - amplifier for load...
Robotic + microcontroler board 32u4 - Arduino Leonardo compatible Motor:...
Servo Hat for Stick C / Stick C plus Servo driver (STM32F0) 4 Servos...
ATmega32u4 @ 8MHz 3.3V...
It would be really great to transport the data over a long distance. Thank to the radiofruit module, it is now possible :-). This radiofruit product combines a microcontroler with a packet radio module board. In the hand, you have micro system ready to collect and send data over the air.
This product contains a Feather 32U4 (like the Arduino Micro) and a RFM69HCW ranged for 868 MHz frequencies! It modulates packet radio data with FSK modulation +20dBm including some extra like encryption & auto-retransmit. With a single wire antenna, it is already possible to send data up to 350m (free line of sight). When using a directional antenna and tuning parameters, it is possible to impressively increase the distance of transmission.
The well known Feather is an Adafruit's development plateform designed for microcontroler's based embeded project. Feather are thin, light and incredibly small. Feather did rapidly becames a new standard for embeded projects and we have toons of Feather and FeatherWings on our shop.
This feather version is assembled for radio transmission @ 868 MHz radio version. The exact radio frequency is set when the software is loaded (and can be tuned dynamically). Note that it also exists in 433 MHz flavor!
This board is propelled an Atmel 32u4 (3.3v logic) clocked at 8 MHz, this processor is very popular in the Arduino world and the same as the Flora plateform. The 32u4 have 32KiB of Flash and 2KiB of RAM. This microcontroler does have a native USB support so USB-to-Serial program & debug capability are included inside the 32U4 and there is no need for an additional FTDI-like chip. Thanks to the USB support, the 32U4 can act as mouse, keyboard, USB MIDI device, etc.
Embeded and portable project need to power! Adafruit did added a LiPo charger circuitery and a connector for 3.7V Lithium polymer batteries. The battery is not a mandatory to make the Feather running. When a Lipo is connected, it is charged when the board is connected on USB. When the USB connexion is removed then LiPo battery would immediately power up the board from le LiPo. The plateform supply automagically switch from the USB power to Lipo power.
The battery is tie to an analog pin through a resistor divider, so it is possible you can measure and monitor the battery voltage to detect when it needs to recharge.
The transmission of packet radio is simplier than WiFi or Bluetooth Low Energy (BLE). No need for networks scanning, pairing or WiFi network configuration. With packet Radio, you can transmit data over the air without worry about pairing or WiFi connexion. All the other module listening on the same frequency (and encryption key) can receive the messages. Then the receiver can send an acknowledgment response
The board is fit with extra specialized breakout that cares about packet handling, auto-restransmit and error correction.
The breakout does work great with microcontrolers (like Arduino), you can use it to connect data in the neigbbordhood (or in the town). The constraint with such radio moduie is that you need 2 of them (emitter and receiver, but you are free to use more breakouts as needed) sharing the same frequency.
The radio packet modules does exists in 4 combinations:
The RFM69 modules are the easiest to use. RFM69 is very well known (LoRa is mode powerfull but also more expensive).
The Feather 32U4 Radio have extra space left, enough to receives the RFM69HCW 868MHz radio module... so radio module is included onto the board. Please note that RFM69 is not designed for high throuput! So you can easily send telemetric data but not audio and video streams. RFM69 and packet radio will save you lot of effort when you need to transport data quite over the distance range of 2.4 GHz devices (BT, BLE, WiFi, ZigBee)
Use the free usage ISM amateur band (ITU "Europe" license-free ISM)
The Feather 32U4 Radio avec RFM69HCW is completely assembled and tested. The 32U4 have an Arduino compatible USB bootloader (great for immediate use). Lipoly battery, USB cable, antenna, breadboard, etc are not included but we have them availables on the shop!
For each order, you will also receive a header section. You can solder them on the board if you need to use the board with a breadboard.
You will need to use and antenna with this product! Using it without antenna can damage the transmitter. Notice that a single piece of wire (solid or stranded core) would do the job.