Box for JK RS485 sniffer
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RS485 sniffer enclosure used JK inverter BMS monitoring as part of https://github.com/txubelaxu/esphome-jk-bms project
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Description:
This is an enclosure designed for an RS485 sniffer used to enable communication between the JK inverter BMS (JK-PBx BMS) and ESPHome/Home Assistant via ESP SERIAL (UART-TTL) + SERIAL TO RS485 + ETHERNET CABLE, as part of the esphome-jk-bms project
Schematics:
Detailed schematics can be found here
Hardware:
1. TTL To RS485 MAX485CSA Converter
2. 30Pin ESP32-WROOM-32S 32D or similar sized board(~52x29x4,2mm)
3. 2 or 3 pairs of M3 nuts and M3x35 bolts
Tips:
1. If the bolt connector (the green one) doesn't fit, cut the thin wall or unsolder the connector and connect the Ethernet wires directly to the pins.
2. Modify the wall (cut or drill) to fit the Ethernet cable and secure it with hot glue after soldering.
3. In the Base, there is 1-layer wall between nut seat and bolt seat. So you dont need to use supports, just print it as bridge and then pierce it with bolt.