LoRa32u4 II Lora Development Board Module LiPo SX1276 HPD13 915MHZ with Antenna for Arduino DIYmall
LoRa32u4 II Lora Development Board Module LiPo SX1276 HPD13 915MHZ with Antenna for Arduino DIYmall
Description
Description: LoRa32u4 II is a light and low consumption board based on the Atmega32u4 and HPD13 915MHz LoRA module and an USB battery charging circuit. Ideal for creating long range wireless networks that can exceed 2.4 GHz 802.15.4 and similar, it is more flexible than Bluetooth LE, does not require high power unlike WiFi and offers long range. ATmega32u4 @ 8MHz with 3.3V logic/power 3.3V regulator with 500mA peak current output USB native support, comes with USB bootloader and serial port debugging Built in 100mA lipoly charger with charging status indicator LED Reset button HPD13: Receive current: 10 ~ 14mA Interface Type: SPI Operating temperature: -40 ° C to + 85 ° C Digital RSSI function Automatic frequency correction Automatic gain control Radio wake-up function Low voltage detection and temperature sensor Fast wakeup with frequency hopping Highly configurable packet handlers Read more LOW POWER The battery monitoring circuit is now active and enabled by the previously unused pin PB0 (not broken-out on headers), it must be enabled (high) to allow battery monitoring. The battery charger is now controlled, it must be enabled (high) by PB0 to allow battery charging. The LDO has been replaced for an ultra low IQ LDO (0.5uA). Overall sleep current has been lowered from 260.2uA to 183.8uA (tested with Atmega32u4 in watchdog sleep mode @ 8MHz and LoRa circuit in sleep mode). USAGE LoRa DIO1 is now connected by default to Atmega32u4 pin 5 (PC6) allowing direct use of LMIC and other LoRaWAN libraries without soldering, it is still possible to disable this link by opening the DIO1 solder jumper on topside. LoRa DIO2 and DIO3 are now routing to Atmega32u4 pin 6 (PD7) and 14 (PD5), solder jumpers are open by default (these DIO pins are rarely used). Atmega32u4 pins 0 (PD2),1 (PD3) for UART and 2 (PD1), 3 (PD0) for I2C are now free for use. LoRa DIO pins solder jumpers have been moved on topside for better accessibility. Pull-up resistors (4.7K) have been added on the I2C bus. The antenna uFL connector has been moved on topside to ease access. 2 Sets Assembled ESP32 OLED WiFi Lora Kit DIYmall LoRa32u4 LORA RA-02 Module Development Board
Features:
- ATmega32u4 @ 8MHz with 3.3V logic/power
- 3.3V regulator with 500mA peak current output
- Built in 100mA lipoly charger with charging status indicator LED, interface is 1.25mm male
- What you will get : 1 X LORA32U4 II 915MHZ board 1 X antenna .