I Asked if it could write code to send an SMS:
Sending an SMS message using a PICAXE microcontroller typically requires interfacing with a GSM module (e.g., SIM800, SIM900, or similar). The PICAXE will send AT commands to the GSM module to initiate the SMS sending process.
Below is an example PICAXE BASIC code to send an SMS message using a GSM module:
PICAXE Code to Send an SMS
' PICAXE Code to Send an SMS using a GSM Module
' Connect the GSM module's TX to PICAXE serial input (e.g., C.6)
' Connect the GSM module's RX to PICAXE serial output (e.g., C.7)
' Ensure the GSM module is powered properly (check voltage requirements)
symbol gsmTX = C.6 ' GSM module TX connected to PICAXE serial input
symbol gsmRX = C.7 ' GSM module RX connected to PICAXE serial output
symbol phoneNumber = "+1234567890" ' Replace with the recipient's phone number
symbol smsMessage = "Hello from PICAXE!" ' SMS message to send
main:
serout gsmTX, T9600_8, ("AT+CMGF=1", 13, 10) ' Set GSM module to text mode
pause 1000 ' Wait for the module to respond
serout gsmTX, T9600_8, ("AT+CMGS=", 34, phoneNumber, 34, 13, 10) ' Specify recipient number
pause 1000 ' Wait for the module to respond
serout gsmTX, T9600_8, (smsMessage, 26) ' Send SMS message (Ctrl+Z = 26 to end)
pause 5000 ' Wait for the SMS to be sent
goto main ' Loop (optional)
Explanation:
- serout: Sends serial data to the GSM module.
- T9600_8: Serial protocol (9600 baud, 8 data bits, no parity, 1 stop bit).
- 13, 10: Carriage return (CR) and line feed (LF) to simulate pressing "Enter."
- AT Commands:
- AT+CMGF=1: Sets the GSM module to text mode for sending SMS.
- AT+CMGS="+1234567890": Specifies the recipient's phone number.
- Ctrl+Z (ASCII 26): Indicates the end of the SMS message.
- Pauses: Allow time for the GSM module to process commands.
Wiring:
- GSM Module to PICAXE:
- GSM TX → PICAXE Serial Input (e.g., C.6).
- GSM RX → PICAXE Serial Output (e.g., C.7).
- GSM GND → PICAXE GND.
- Power:
- Ensure the GSM module is powered with the correct voltage (e.g., 3.7V–4.2V for SIM800/SIM900).
- Use a separate power supply if the PICAXE cannot provide sufficient current.
- Antenna:
- Attach an antenna to the GSM module for proper signal reception.
Notes:
- Replace "+1234567890" with the actual recipient's phone number in international format (e.g., +441234567890).
- Ensure the GSM module is properly configured (e.g., baud rate, SIM card inserted, network registered).
- Test the GSM module with a terminal program (e.g., PuTTY) to verify AT commands before integrating with the PICAXE.