Stemedu

Black LoRa32u4 II LoRa Development Board ATmega32U4 8MHz 3.3V with SX1276 868MHz Module USB-C LiPo Charging Arduino-Compatible for LoRaWAN Remote Sensor Mesh Network

▶ 【ATmega32U4 + SX1276 868MHz LoRa】 Features Atmel ATmega32U4 microcontroller (8MHz, 3.3V logic) with HPD13 module based on Semtech SX1276 transceiver. Supports 868MHz frequency band for long-range wireless communication – outperforms 2.4GHz Zigbee, lower power than Wi-Fi, greater range than BLE. Document link: https://github.com/BSFrance/BSFrance-avr ▶ 【Ultra-Low Power & LiPo/Li-ion Charging】 Onboard 100mA lithium battery charger with charging status LED (orange). Rev 1.3 improvements include ultra-low IQ LDO (0.5µA) and reduced sleep current to 183.8µA. Battery monitoring enabled via PB0 – perfect for remote sensor nodes (Excluding battery) ▶ 【Fully Arduino-Compatible with Native USB】 Works with Arduino IDE – select "Adafruit Feather 32U4" board package. Native USB supports Serial, HID (mouse/keyboard), and MIDI without external FTDI chip. Double-click reset button for bootloader mode ▶ 【Advanced LoRa Features】 Digital RSSI, automatic gain control (AGC), automatic frequency correction (AFC), wake-on-radio (WOR), and fast wake-up with frequency hopping. DIO1 pre-connected to pin 5 (PC6) for LMIC/LoRaWAN libraries. UART (PD2/PD3) and I2C (PD1/PD0) pins free for use ▶ 【Rev 1.3 Enhancements & Wide Applications】 LoRa DIO solder jumpers moved to top side for easier access. Added 4.7K pull-ups on I2C bus. U.F.L/I.P.E.X antenna connector on top side. Ideal for LoRaWAN gateways, long-range mesh networks, environmental monitoring, agricultural sensors, and smart metering