Arduino Forum

Using Arduino => Installation & Troubleshooting => Topic started by: somnath3 on Aug 28, 2017, 03:14 am

Title: GSM Shield
Post by: somnath3 on Aug 28, 2017, 03:14 am
Hi! I purchased GSM Shield (TEL0051 manufactured by DF Robot sold by Jameco Electronics, CA). I can successfully upload sketches to Uno when the GSM Shield is not connected. However, on connecting the GSM Shield I cannot upload sketches. Attached please see error message. Please help!
Title: Re: GSM Shield
Post by: szalaco on Aug 28, 2017, 07:18 am
I had the same issue earlier with my shield. I solved it with changing the RX\TX jumper on the Gsm shield. Maybe you also have it on your type of gsm shield.
Title: Re: GSM Shield
Post by: dannable on Aug 28, 2017, 07:12 pm
If the shield (any shield) is configured to use D0 & D1 for communicating with the Arduino then you will have problems when it is connected as the ATMega328 is programmed using these pins and the shield interferes with this process.