The prototype batch of PCBs for revision 4 of the Pi1541io board didn’t take long to ship and it arrived from PCBWay while I was on vacation. Today, I finally managed to assemble one of the boards and everything seems to work great!Revision 4 is basically what the previous one should have been: an improved rev.2 with an added I2C connector for an OLED display. In this revision though, the I2C connector can be configured to accommodate different kinds of display modules.
|Update: For those of you who can’t wait and who understand the possible issues described below, rev.3 boards are now available on PCBWay. If you can wait another 3 weeks I’d recommend you wait for the next revision.
After a longer wait, today I finally received the prototype batch of PCBs for revision 3 of the Pi1541io board. Only relevant change to the previous revision is the I2C header for connecting a SSD1306 based OLED display module.