Hardware startups are such a pain in the ass One recent run fun issue I had was a pneumatic timer that worked fine in testing in the shop and outside my house

Hardware startups are such a pain in the ass One recent run fun issue I had was a pneumatic timer that worked fine in testing in the shop and outside my house But once in the field the sun heated up the tube enough to trigger the sensor and get stuck in an on state requiring a plug on one end with a hole big enough to let the pressure out but small enough to let pressure trigger the sensor