Skip to content

RevA V1.2

Pre-release
Pre-release
Compare
Choose a tag to compare
@src1138 src1138 released this 23 May 23:52
· 103 commits to main since this release
RevA_v1.2
d712f59

For the 3rd small run of PCBs.

This started out on breadboards, then stripboard - with many experiments and revisions. My first two runs of PCBs had some annoying mistakes in them. Fixable, but I want a completely working board - no bodge wires or cut traces required.

Fixed issues found in v1.0 and v1.1.

  • PIR is wires correctly and pins arranges to match most PIR module pinouts (v1.0)
  • added a 100K bleeder resistor actoss C7 so the pulse shortener works more than once (-_-) (v1.1)
  • added another 10K resistor and diode to the timer output so it can turn on the sensors - else it will run for ~11 seconds (v1.1)
  • added optional capacitors to the sensor outputs to prevent triggering on power up
  • removed unecessary 10K resistors on pin 4 of the timer and IR 555s.
  • removed motor and timer pins from the external header and rearranged them to match typical 4-channel level shifter pinouts
  • connected the barrel jack switch pin to ground
Assets 2
Loading