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Firmware (HEX) file and source code for the Speech Timer [1911115A.HEX]
HEX file and assembly language source code for the PIC16F88 8-bit microcontroller in the Speech Timer for Contests and Debates.
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Speech Timer PCB [19111151]
PCB for the Speech Timer for Contests and Debates.
Double-sided PCB with plated through holes, solder mask and silkscreen overlay.
163 x 102mm.
Please note: there is a minor error on the RevB PCB which results in Q9's middle pin not being connected. Also, the labels for Q9 and Q10 may be swapped on the PCB. Make sure that Q9 and Q10 are fitted in the locations shown in the magazine. Check if the track for Q9's central pad is missing and if so, bend Q9's central lead over and solder it to the corresponding middle pad for Q10.
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PIC16F88-I/P programmed for the Speech Timer [1911115A.HEX]
A PIC16F88-I/P 8-bit microcontroller programmed with the firmware for the Speech Timer for Contests and Debates (1911115A.HEX).
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Speech Timer PCB pattern (PDF download) [19111151]
PDF with the PCB design for the Speech Timer for Contests and Debates (double-sided).
Both layers are in a single PDF.
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Front/side panel artwork and drilling diagram for the Speech Timer (PDF download)
Panel artwork for the Speech Timer for Contests and Debates. A separate drilling detail file is included.
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