Article 501 provides the requirements for Class I locations, such as the refinery shown in Photo 1. In the May issue, we described the Division system outlined in the NEC, which further breaks down ...
Arduino code (ESP32) to read the tire pressures, temperatures, battery levels and alarms from the BLE ZEEPIN TPMS Sensors, TP630, etc. Bytes 8,9,10 and 11 are a representation of the air pressure in ...
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