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Elm327 At Commands
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ELM327 OBD to RS232 Interpreter - Elm Electronics
www.elmelectronics.com‘Busy’ output, showing when the ELM327 is actively processing a command (the output will be at a high level), or when it is idle, ready to receive commands (the output will be low). By default, bit 7 of PP 0E is ‘1’, so pin 16 provides the Power Control function. RS232Tx (pin 17) This is the RS232 data transmit output. The signal