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> <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> <br> Package Contents: <br> 1 x Relay Development Board <br> 2 x Pin <br> <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