- Thu Mar 03, 2022 11:28 am
#55652
2022 is here and I'm totally bored on soldering these THT boards So I introduce this rev3.0 board that is mostly SMD:
https://oshwlab.com/pazi88/speeduino-v0 ... _copy_copy
The current chip shortage has been taken into account when designing this, so at least currently all the components on this board should have good availability. The big TO220 components are still there but other components are almost all SMD. As feature wise this is pretty much same as previous rev2.2. Though I have added interface chip to K-line and the transmission CAN lines connect to "mega". These are meant to be used with the STM32 mega replacement processor. And the K-line part won't probably ever be part of the Speeduino FW. So it's mostly for my own use and for more advanced users.
There is though one change that will affect regular users, which is that the 3x spare relay outputs are now general purpose I/O pins. That is mostly because I at least personally haven't found any use for the spare outputs, but I'm missing inputs. So those relay outputs are now mainly protected digital inputs, but those can be used as outputs too with circuitry to match. And the 5 spare analog inputs now have solder jumpers to enable bias resistor/pull-up.
The design is not 100% ironed yet and I haven't ordered boards for testing, but if you want to be adventurous, it's available at EasyEda:
The current chip shortage has been taken into account when designing this, so at least currently all the components on this board should have good availability. The big TO220 components are still there but other components are almost all SMD. As feature wise this is pretty much same as previous rev2.2. Though I have added interface chip to K-line and the transmission CAN lines connect to "mega". These are meant to be used with the STM32 mega replacement processor. And the K-line part won't probably ever be part of the Speeduino FW. So it's mostly for my own use and for more advanced users.
There is though one change that will affect regular users, which is that the 3x spare relay outputs are now general purpose I/O pins. That is mostly because I at least personally haven't found any use for the spare outputs, but I'm missing inputs. So those relay outputs are now mainly protected digital inputs, but those can be used as outputs too with circuitry to match. And the 5 spare analog inputs now have solder jumpers to enable bias resistor/pull-up.