Jun 13, 2020 Replies: 1 RPM meter connected to Bluetooth OBD plug with ELM327. To request RPM you send to the ELM327 "010C" and the reply is: 7E8 04 41 0C 0D 80 . 7E8 = reply to test, 04 = reply with 4 bytes, 41 = reply OK, 0C = PID (command) echo, 0D 80 = 2 bytes of data. Most of the code is derived from Erel's examples. Attachments rev_counter4.zip rev_counter4.zip 95.6 KB · Views: 509 Last edited: Mar 3, 2023 Click to expand...
RPM meter connected to Bluetooth OBD plug with ELM327. To request RPM you send to the ELM327 "010C" and the reply is: 7E8 04 41 0C 0D 80 . 7E8 = reply to test, 04 = reply with 4 bytes, 41 = reply OK, 0C = PID (command) echo, 0D 80 = 2 bytes of data. Most of the code is derived from Erel's examples.
moty22 Active Member Licensed User Longtime User Oct 18, 2022 #2 Errors of layout and code were corrected.
