Cactus | CSQ

Schedule

Timeline

Quality

For future improvements

(Prototype) Buy electronics modules for V1.0 Make it work, make it right, make it better
(BOM) Ensure main BOM components are available from vendors before schematic or layout
(BOM) Check pin, pitch, manufacturer part number, function before buying BOM parts
(Power) Do a power tree analysis starting with power source before the schematic design
(Case) Test out paper mockups for mechanical dimensions
(Case) Do a mechanical consideration before laying out the footprint
(Schematic) Design a power on/off switch to start/stop using the battery
(Prototype) Leave out the module's on-board LED as a possible separate indicator E.g. Not linking GPIO02 to EN for the shift register
(Schematic) Don't use main chip's power output to enable other components, use another GPIO pin. E.g. Not linking 5V on WeMos to Vin of a sensor or shift register
(Case) Ensure the mechanical housing has an opening above any environmental sensors E.g humidity, UV index, air pressure
(Testing) Make 2 units, not just 1 especially for non-interactive projects - one for deployment, one for iteration/testing
(Chore) Tag the repository with the version number when the PCB is sent out for manufacturing
(BOM) Reduce total BOM components
(Power) Increase battery life by cutting off power to the sensors during sleep
(Firmware) Device an easy way to erase on board WiFi credentials and cloud connectivity details without the need to flash and re-flash the erasing firmware E.g. press a button
(Chore) Tag the repository with the version number when the PCB is sent out for manufacturing
(Firmware) Make the measurement interval configurable without re-flashing the firmware