I am not sure where I wanna use this W5500 circuit, but the nice thing is that KiKad makes this a module I can re-use. This actually is the reference schematics.
I am not sure where I wanna use this W5500 circuit, but the nice thing is that KiKad makes this a module I can re-use. This actually is the reference schematics.
Fiber modules have been around for some years. The picture below show a 14.- USD 8 x Ethernet/2 x Fiber Mux/Switch that can be found on AliExpress etc. I have also seen smaller modules and 16 x Ethernet modules in the same price range – also boxed versions. The interesting thing about these is that…
This is the Ethernet board 3D from front. This 3D model is a bit ruff, but it serves its purpose and looking at this I realize that the RJ45 connector is to high. This is not critical as I can adjust hight by extending the pins to the next board (not shown) and use extended…
I am a bit stunned by the memory usage on ESP32. This is a 178 line test script that uses wired Ethernet and it only send an UDP message out – the program uses 645606 bytes – which is 49% of available space. Luckily it does not increase that much, so I assume this is…
Minor upgrade of the Wifi/Ethernet Hat as I remove the 5V Power connector from all Hat’s. It just occupy space and I really needed to add a shortcut protection if I was to keep it. 5V for MCU will now only be available from RPI backbone or USB only. I already have a separate PSU…
RC1 of the ESP32 based Ethernet/Wifi Hat can be seen above. The module follow the same standards as the STM32 based modules with SPI backbone CAN and USB. The board can fit straight on a Raspberry PI or be combined with any module described in this series. New to this version is that I removed…
Just showing the ground plane on the Ethernet/Wifi Hat. I am very pleased with this one and the approach I used here. Earlier as I routed I have routed on both sides with ground plane becoming very fragmented. On this one I only used ground plane as an exception and only for minimum distances. The…
This drawing is an overview of the Hat’s in progress. A few is only on the planning stage, but most electronics is on prototype level and SW is coming on. Raspberry PI is the obvious core if I need heavier processing. Due to the nature of it’s SPI I can only connect one of these…
Again I am not done routing, but I wanted to illustrate ca the space cost of adding an Ethernet Phy and why I was so interested in Pro-EP10. You can see Pro-EP10 footprint at left in green, while LAN8710 and RJ45 w/magnets build in is in blue at left. Using Pro-EP10 would be a huge…
Not routed the Hat yet, but got all components on the PCB and it looks possible. Using an optional 2.4Ghz antenna on this one. It will take ca 1 week and I probably have the first draft routed. It tends to og fast once I start. What I usually do is to do a bit…