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The following design and schematics are the property of Debug Innovations Ltd. They are free for non-commercial use. Contact me if you intend any other use.
If you order a PCB from Debug Innovations, you will receive a V1.2 PCB. Much of the information on this website shows V1.1 of the PCB but the two versions are very similar (see changes). The design information for both versions is available below. Please ensure you use the correct parts list matching the PCB version you are assembling.
V1.1 of the PCB uses a PIC16F18857 chip. V1.2 of the PCB uses a PIC18F26K83 chip. The two chips are pin-compatible and either device can be used in either version of the PCB. Therefore we recommend using the PIC18 with the latest firmware. Older versions of firmware for the PIC16 are also available below.
Here are some videos of the TTL Terminal in action. Files are large so downloads may be slow.
The following program can be used to test your terminal and demonstrate its capabilities. It is a Windows console mode application with a choice of 4 demos. Connect the terminal to a PC serial port. Requires V1.2 or higher PIC firmware.
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