Connect SIM800C SMS Module to a Raspberry PI
This is video 1 of a tutorial on how to send and receive SMS using a SIM800c Module and a Raspberry Pi.
1. Wiring : • Connect SIM800C SMS Module to a Raspb...
2. Receive SMS : • Receive SMS using a SIM800c Module
3. Send SMS : • Send SMS using a SIM800c Module
I show how to connect a SIM800C V2 Module to a Raspberry PI
Set the wiring between the RPi and Sim800C Module as
RPi 5V ←→ SIM800C VCC_IN
RPi GND ←→ SIM800C GND
RPi GPIO14 (TXD) ←→ SIM800C RXD
RPi GPIO15 (RXD) ←→ SIM800C TXD
On the RPi you will need to disable the login shell over serial and enable serial through GPIO.
On Rasbian OS, open a terminal prompt,
sudo raspi-config
Select Option 'Interfacing Options'
Select Option 'Serial Port'
For Question 'Would you like a login shell to be accessible over serial?' answer 'No'
For Question 'Would you like the serial port hardware to be enabled?' answer 'Yes'
'Finish' raspi-config and reboot the Pi for changes to take effect.
sudo reboot now
Log back into the RPi, and install minicom
sudo apt install minicom
Now to open minicom and connect.
Depending on your version of RPi, (video is 3) I connect to ttyAMA0.
On RPi4 I could connect using ttyS0 instead, so if ttyAMA0 freezes minicom, then try ttyS0
sudo minicom -D /dev/ttyAMA0 -b 115200
or
sudo minicom -D /dev/ttyS0 -b 115200
type AT and then press [ctrl-m] for the carriage return.
Then ATI then press [ctrl-m] and you should get the response similar to
SIM800 R14.18
Visit https://www.raspberrypi.org/documenta... for more info about RPi UART configurations.
SIM800c : https://amzn.to/3mYOh4p
RPi Store : https://amzn.to/2G0rN2z
0:00 Connect SIM800C Module to a Raspberry PI
1:00 Show Wiring Diagram
2:05 Configure UART on Raspberry Pi
3:40 Install minicom
4:00 Connect to SIM800c using minicom
#sms
#smsModule
#sim800c