Case For OpenDTU PCB by turrican944

PCB: https://github.com/turrican944/OpenDTU-PCB (thank you turrican944!)

Order it from a pcb maker of your choice, e.g. jlcpcb or pcbway.

OpenDTU: https://www.opendtu.solar/

BOM:

• PCB by turrican944
• D1 MINI ESP32 e.g. https://www.aliexpress.com/item/1005006400668971.html (with usb c)
• Usb C mini trigger board 5V https://www.aliexpress.com/item/1005005747849999.html
• RF module for HM devices: NRF24L01+ e.g. https://www.aliexpress.com/item/1005006173509146.html
• RF module for HMS/HMT devices: CMT2300A / E49-900M20S e.g. https://www.aliexpress.com/item/1005003292022740.html
• Antenna for CMT2300A e.g. https://www.aliexpress.com/item/1005006169750685.html
• 1.3" OLED Module IIC e.g. https://www.aliexpress.com/item/1005006127524245.html
• PCB standoffs for the OLED Module M3x15 mm e.g. https://www.aliexpress.com/item/1005006038666758.html
• M3x6 button head screws e.g. https://www.aliexpress.com/item/4000341151320.html
• Low esr capacitor 16V 470UF e.g. https://www.aliexpress.com/item/33030332216.html
• Heat set inserts M3 4mm length e.g. https://www.aliexpress.com/item/1005003582355741.html
• Pin headers
• super glue or hot glue
• short wires

The usb c trigger boards need to be glued in place. If you want use both orientations connect them in parallel. Do not power them simultaneously. Solder the output of the trigger board to the 5V input of the pcb with wires.

The oled display needs to be put on the 15 mm standoffs. Use the long header pins that are delivered with the D1 Mini Esp32 to make a socket for it to connect it to the pcb. Only use two standoffs, lower left and upper right. The lower right one will collide with the back side of the case.

Don't forget to solder the bridges for the power of the oled display (see the documentation of the pcb)!