The ATmega16U2 (or 8U2 in the rev1 and rev2 boards) firmware source code is available
The TFMini is easy to power at only 5V and easy to talk to using a 3
This current sensor is a carrier board or breakout board for Allegro's ACS714LLCTR-30A-T Hall effect-based linear current sensor
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300 bps to 115200 bps in autodetect-baud mode (2)
Nordic nRF52840 BLE Module (MDBT50Q-1MV2) Shipping:2-4 Weeks The ATmega16U2 (or 8U2 inRaytac's MDBT50Q is a BT 5. 2 stack (Bluetooth low energy or BLE) module designed based on Nordic nRF52840 SoC solution, which incorporates: GPIO, SPI, UART, I2C, I2S, PMD, PWM, ADC, NFC and USB interfaces for connecting peripherals and sensors. It features an embedded 2. 4GHz transceiver supports Bluetooth 5. 2, IEEE 802. 15. 4 (Thread & Zigbee) & 2. 4Ghz RF & ANT+ upon customer's preference. Compact size with (L) 15. 5 x (W) 10. 5 x (H) 2. 05 or 2