@tcccorp 1. To set the local SMS center: AT+CSCA=""+ Press Enter, return OK. For details, consult your carrier.
2. AT+CMGF=1: Set the SMS mode to TEXT.
3.AT+CMGS="phone number"< enter >, set the receiver phone number, then return: ">",
Send desired content, such as "Send Massage Test!" You don't need a carriage return at the end,
After editing the SMS message, send the message in hexadecimal format 1A (1A is the key value of CTRL+Z, which tells the module to send the message.
You can also send 1B, that is, "ESC" to cancel the operation.) After the sending is successful, the module returns +CMGS: 15 to confirm the successful sending.
The factory firmware uses MY-TTGO-WATCH firmware, the original firmware offset touch coordinates is too large, you can refresh the firmware in TTGO_TWatch_Library , it should work fine, if you want to recompile the firmware, you can change the scaling here My-TTGO-Watch
You mean put the watch on the table, touch the panel and it will move by itself?
You can try to write TouchPad Example into the watch, then put it on the desktop without touching it, and check whether the coordinates on the screen will change. If it changes by itself, please contact customer service for after-sales processing.
@yu Hi. The test range requires one transmission and one reception to perform the range test, and care should be taken to choose an open and unobstructed place. The sender can be placed in a high place if allowed.