| Examples | Product Link | Schematic | Status | Recommended level |
|---|---|---|---|---|
| SIM800L IP5306 20190610 | Product link | Schematic | ✅ | ⭐ |
| SIM800L IP5306 20200811 | Waiting to be released | Schematic | ✅ | ⭐⭐ |
| SIM800L AXP192 20200327 | Product link | Schematic | ✅ | ⭐⭐⭐ |
| SIM800C AXP192 20200609 | Product link | Schematic | Soon | ⭐⭐⭐ |
If you are unable to download, please try the following steps, if it still does not work, please contact customer service
- Open the serial monitor
- Short IO0 to GND
- Press the RESET button on the board, if the serial port communication is normal, then you should see
ets Jun 8 2016 00:22:57 rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2)) waiting for download - If you can see the above message, it means that the communication is normal, then all you need is to let it enter the waiting download mode, then you can click upload, usually it can solve the problem of not being able to download automatically