Description <br>1. Using the mature and stable STM32F103 series 32-bit microcontroller, users can develop based on AT instructions or directly based on AIR780E; <br>2. Onboard AIR780E module, low power consumption, sleep power consumption as low as 600uA; <br>3. Flip-top nano SLM card holder, easy to load and unload; <br>4. Onboard blue AIR780E network status indicator; <br>5. Onboard reset button and user button, users can develop their own required functions; <br>6. Support Type-C power supply + KF128 terminal 5V power supply; <br>7. The commonly used IO ports of the microcontroller and AIR780E are basically all led out. <br>Different batches may have different appearances, but will not affect the use <br>Colour:Blue <br>Material:PCB+Electronic component <br>Package Contents: <br>1 x Relay Development Board <br>2 x Pin <br>Only the above package content, other products are not included. <br>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br>Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store