Replaced ESP32 on the failing Hat and Wifi worked. Seems like I had my first ever failing ESP32 module. The Wifi Hat is No 2 from top. This stack includes (from top): 7 x Stepper Hat ESP32 Based Wifi Hat XPortHub XPortHub Raspberry PI 3A+ I have 2 USB ports connected here and both show…
This show the 7 x 5-Wire stepper with the intended connectors and an example of the stepper connected. I have 2 errors on this Hat – firstly I have the +V on the wrong side, so I have to turn the connectors around. I will just use straight connectors for testing. The second is that…
This is the last version of the 32 x IO Hat. I just modified it to use the faster SPI towards RPI bus. The Power connector on the right side is for Servo’s. It enables a different voltage than 3.3V supplied from a separate PSU Hat. The jumper need to be set for 3.3V to…
This ESP32 Hat work perfect on IO, but as I switch on Wifi it short-cut and reboot. I might have encountered my first bad ESP32 module, but I am not sure yet. I need to assemble another unit and see if this works as this is the first time I assemble this board. This is…
This 12 x PWM Hat have 12 x high side current sensors. The PWM driver have a separate PSU, DRV8313 is rated 60V and INA194 is rated -16 to 80V so they are not that easy to break giving the Hat a very decent protection level. A separate TVS and capacitor bank on motor PSU…
This Hat was actually a challenge to route, but I managed it at the 4th attempt. I am quite happy with the result as well. Raspberry PI Hat Format STM32F405RG MCU, 32bit ARM M4, 168Mhz, 1Mb Flash, 196Kb SRAM. 42Mbps backbone network. ca 30Mbps With Raspberry PI. CAN Network USB Separate PSU for PWM 12…
Message Header This is the new message format that I will use on SPI, RS485 and Ethernet. For CAN I am not sure yet. I might want to take more advantage of the strong capabilities in CAN, but lets see. The format above allows me to communicate device to device in a network, but at…
I have not tested everything yet, but rev 1.1 of XPortHub need a few changes: correct package on serial flash. wap sequence on dip switch. replace battery with a proper battery holder. Can be mounted on back-side if needed. This also fix the short-cut here. Test Power Connector. I have a 2-pin connector that is…
It’s been many Hat’s lately as I am focusing more and more on this as my main core for everything. I still have a load of Hat’s that I want to start on, but I won’t exactly have much spare time the coming year. This is just a summary of projects that I am working…