gsm module sim900a help
$10-30 USD
Betalt ved levering
I am working on gsm sim900a module, using serial monitor putty to check the response of gsm module, AT commands have no response. All the connection are ok using usb to serial monitor. need help in trouble shooting this problem.
Projekt ID: #21714418
Om projektet
11 freelancere byder i gennemsnit $38 timen for dette job
Hi, I have more than 8 years of experience in embedded system design and development. I have expertise in IoT products development based on WiFi,BLE,GSM,GPS,RF etc. I have designed no of products using SIM900A module. Flere
Hello Sir I am a Mechatronics engineer and I have a lot of experience dealing with these things. I will definitely deliver your work on time and I will be pleased to do your project in a reasonable budget. Thank you
Hello there, We have past experience in GSM module and we have build product based on SIM 800, SIM900 and SIM808 module. I understand the issue you are facing. I would like to few details about the circuit: - Circuit Flere
sim900 uses USART bus. You are using a USB-RS232 adapter. Therefore, the module does not receive commands, since the RS232 inverts the USART signal. You need to add an RS232-TTL adapter. Or use any RS232 driver chip
Hello Dear Concern, We are a team of professional members of Electrical, Electronics, Mechanical, Civil, Chemical Engineering. We are also expert in following softwares: Power World Simulator(PWS), PADS, PORTEL, ,Soli Flere