• SIM868L.py: a pure-MicroPython driver for the SIM868 GPRS module with both HTTP(S) GET and POST support. Works out of the box on the RP2040-SIM868.

Example usage of HTTP is in the example_SIM868.py script, just set the APN and change the pins if needed, then run the "example_usage" function.

Example usage of GPS is in the gps_example.py script, run the "example_usage" function.

Example usage of SMS is in the sms_example.py script, run the "example_usage" function.

• Tutorial on getting started with the RP2040 and MicroPython from Install Thonny to Blink the onboard LED is the most relavant.
• Save/upload the SIM868.py file to the RP2040-SIM868.
• Save/upload one of the example file or create your own script.

This is a modified fork from Pythings SIM800L HAL Driver. There driver significantly speeded up development of RP2040-SIM868 HAL driver.

Modem(uart=None, MODEM_PWKEY_PIN=None, MODEM_RST_PIN=None, MODEM_POWER_ON_PIN=None, MODEM_TX_PIN=None, MODEM_RX_PIN=None)

Initialize a class of Modem.

• uart: Hardware uart number to use
• MODEM_PWKEY_PIN: Pin that the power key is attaced too. N/A for the RP2040-SIM868.
• MODEM_RST_PIN: Pin that the Reset on the SIM868 is attached too. N/A for the RP2040-SIM868.
• MODEM_POWER_ON_PIN: Pin that the Power on/off is attached too on the SIM868. PIN 3 on the RP2040-SIM868.
• MODEM_TX_PIN: Pin that the TX on the SIM868 is attached too. PIN 5 on the RP2040-SIM868.
• MODEM_TX_PIN: Pin that the RX on the SIM868 is attached too. PIN 4 on the RP2040-SIM868.

Modem.initialize()

Power on the modem and initialize the uart driver.

Modem.connect( apn, user='', pwd='')

Connect to the GPRS network.

Set the APN to internet with no username or password. Otherwise please contact your service provider to get these settings.

• apn: Set SIM868 APN.
• user: SIM868 APN USERNAME.
• pwd: SIM868 APN PASSWORD.

Modem.disconnect()

Disconnect from the GPRS network.

Modem.http_request(url, mode='GET', data=None, content_type='application/json')

Send a HTTP request via the GPRS network.

Only support for GET and POST method at this time.

• url: URL to send the HTTP Request too.
• mode: HTTP method to use.
• data: Data to be sent on the network via HTTP.
• content_type: Set the HTTP content type header.

HTTP Response.

Modem.gps_on()

Turn on the GPS.

Modem.gps_off()

Turn off the GPS.

Modem.gps_read()

Request GPS data from the SIM868.

GPS data as a dictionary.

Modem.send_sms(number=None,msg='')

Send a SMS message. (untested)

The number must lead with you international code eg. +27xxxxxxxxx

• number: Number to send the SMS too.
• msg: SMS message.

Modem.get_info()

Get information about the modem

Modem information.

Modem.battery_status()

Modem.scan_networks()

Modem.get_current_network()

Modem.get_signal_strength()

Modem.get_ip_addr()

Modem.get_ip_addr()