SPECIFICATIONS

1 Product Name：LoRa32u4 II Wireless IoT Development Board
2 Main‑chip Configuration：ATmega32u4 Core, built‑in SX1276 wireless module and OLED screen
3 Microcontroller parameter：ATmega32u4 high‑performance 8‑bit main controller, main frequency 16MHz
4 RF chip：SX1276 long‑distance transceiver transmitting module
5 Optional working frequency：868MHz (European frequency band) / 915MHz (America, Canada, Australia frequency band)
6 Maximum transmitting power：+20 dBm (100mW)
7 Visual transmission distance：more than 5 kilometers under line‑of‑sight environment
8 On‑board display：0.96‑inch SSD1306 monochrome OLED screen, resolution 128×64 pixels
9 Power supply mode：5V USB power supply, onboard 3.7V lithium‑ion battery charging circuit
10 Board dimension：60mm × 22mm, compatible with breadboard
11 Core feature 1：Adopt SX1276 long‑range low‑power radio chip, realize long‑distance stable data transmission and low power consumption
12 Core feature 2：ATmega32u4 comes with native USB, supports Arduino‑IDE one‑click compilation and burning
13 Core feature 3：Onboard lithium battery charging circuit, suitable for portable IoT nodes, remote sensor equipment and field data‑collection devices
14 Core feature 4：Built‑in OLED screen for real‑time viewing of signal strength, operating state and sensor data, no need for an external display screen
15 Supplementary description：Detailed pictures are placed below