how to send AT commands using assembly language in hex or ascii???? | Microcontroller › 8051 › how to send AT commands using assembly language in hex or ascii???? This topic has 2 replies, 3 voices, and was last updated 12 years, 11 months ago by Rakesh kumar.A. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts January 8, 2011 at 11:09 am #528 GauravParticipant hiii……..i am working on interfacing gsm module with 8051 i hav wrote the code but confusion is weather to send AT commands in hex or ascii….? please help me mail me on [email protected] January 10, 2011 at 6:30 am #5322 dagakshayParticipant try with hex i think it will work… we use ‘A’ want to send A palce it b/w two single quotes in C May 28, 2011 at 5:14 pm #6305 Rakesh kumar.AParticipant use hex.. i just got AT n AT+CMGS also.. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In