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OLIMEX / ESP32-EVB

ESP32 WiFi / BLE Development board with Ethernet interface, Relays, microSD card
Apache License 2.0
250 stars 108 forks source link

EXT1 and USB-UART1 are too close #12

Closed Miceuz closed 6 years ago

Miceuz commented 6 years ago

It is impossible to use 40 pin IDC shrouded header for EXT1 as USB connector is too close.

image

It is possible to trick it into semi-usable configuration, but pin numbering is screwed up in this case and ultra-thin usb connector has to be used.

image

So basically, the only workaround is to use 34 pin connector and loose access to +5V and +3.3V.

Otherwise, thank you for this board. We are using it to build an electronic lock in our hackerspace.

DanKoloff commented 6 years ago

This is not the connector we had in mind during the design. The schematic of the board says what is the component that we had in mind while designing these pinholes - it is HN2X20 (and the NA is short from Not Assembled). Search for "HN2x20 connector" to see such products.

The pinholes were meant to be used with male connectors like these: https://www.olimex.com/Products/Components/Connectors/MALE-PAV16X-2x05/ - they have a plastic base that would lift it above the micro USB connector and would allow connecting a female.