Regarding 8051.h | Miscellaneous › Others › Regarding 8051.h This topic has 2 replies, 3 voices, and was last updated 8 years, 11 months ago by Ashutosh Bhatt. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts September 25, 2015 at 2:24 pm #4010 RekhaParticipant hello Please suggest the 8051.h header suitable for use with Automatic room lighting system source (c) file. Sundar September 26, 2015 at 3:58 am #13324 Prabakaran P MParticipant Hi Rekha, It is inbuilt with uvision Keil IDE. Select your Atmel variant of 8051 chip and paste the code header files will be included. September 29, 2015 at 5:40 pm #13338 Ashutosh BhattParticipant if u r designing system using any MCS51 family based micro controller like AT89C51/52 etc then u can use reg51.h file as header file 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