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Custom EVSE charger build  

Couple of weeks ago, we were approach by YLE company, inquiring for EVSE <-> EV communication device. After doing some research, following device was created. Standards and available ICs For EVSE <-> EV communication the ISO 15118 is available, defining this interface. This standard is based on PLC – Power Line…

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ESPHome based AUX AC PCBA – revision 01 update

After partial failure of revision 00 with wrong connector and pins swap, the revision 01 is available, fixing these points: replace connector with 2mm pitch swap TX and RX pins add RX pin voltage divider population option for ESP RX pin protection rotate the connector by 90 degrees for easier…

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ESPHome based AUX AC PCBA arrived – and failed (a bit)

First batch of 3104-00 ESPHome AUX AC PCBAs arrived! Some basic initial testing was done: supplying with 5V didn’t damage the PCB output of the regulator was stable at 3.3V it was possible to program the ESP32 over UART and later over WiFi Next step – testing with AC! EDIT:…

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ESPHome based AUX AC PCBA

What This device is following this project LINK for ESPHome based AUX AC control. This project consists of full documentation for 2 layers PCB, equipped with power supply and ESP32 S3 WROOM 1 device. Full documentation is available at our GITLAB: GITLAB CIRCUIT-ISSUES SCH The schematic LINK was generated using…

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