<![CDATA[Bus Connector size? (not 2.54)]]>What is the actual size of the bus header as it is too small for my Dupont 2.54mm pins?

]]>https://community.m5stack.com/topic/232/bus-connector-size-not-2-54RSS for NodeWed, 29 Apr 2026 13:17:41 GMTSun, 17 Jun 2018 12:12:48 GMT60<![CDATA[Reply to Bus Connector size? (not 2.54) on Wed, 20 Jun 2018 19:24:52 GMT]]>Hi @ajb2k3,

I gather you are talking about the internal MBUS GPIO pins - that connect the modules together.

The pin pitch - distance between the pins - is 2.54 but the pins are height reduced compared to those found on a standard GPIO header - too SHORT for Dupont connectors to attach.

The MBUS pins are intentionally height reduced in order to minimise the overall height of the M5Stack.

It is possible to source a third party full height 30 pin GPIO header if needed, or you can make one using a GPIO for Arduino or Raspi. You could get a PCB made to go with it, based on the files available on github, see here.

]]>https://community.m5stack.com/post/1124https://community.m5stack.com/post/1124Wed, 20 Jun 2018 19:24:52 GMT