The PI family expands with CAN FD and RS-232/485/422 modules
There are two new modules for Raspberry Pi or PI-CPUF407. One is the PI-CAN module with CAN FD interface with speeds up to 8 Mbit/s and the other is the PI-RSX combination module with optional RS-232, RS-485 or RS-422 interfaces. These are stackable HAT+ modules with integrated EEPROM for module detection and both with LED activity indication.
Read more: The PI family expands with CAN FD and RS-232/485/422 modules
Using PI-AIO and PI-DIO with Python in Raspberry OS
The PI-AIO and PI-DIO modules are connected to the Raspberry Pi on the I2C bus on pins GPIO2 (SDA) and GPIO3 (SCL). Therefore, the I2C stack, which is already integrated in the Raspberry OS, can be used for control. Let's take a look at how to do this in the Python programming language.
Read more: Using PI-AIO and PI-DIO with Python in Raspberry OS
HAT modules not only for PI-CPUF407
Three modules have been developed with digital and analogue interfaces not only for the PI-CPUF407. This includes the PI-FIO module, designed for direct use of the interfaces on the STM32F407 processor, as well as PI-DIO with galvanically isolated digital inputs and outputs and PI-AIO with galvanically isolated analog inputs and outputs. PI-DIO and PI-AIO are compatible with the HAT+ standard for Raspberry Pi.
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CPU module PI-CPUF407
We took the core of the IPC-CPUF407 modular computer and placed it on a board with Rasberry PI format. The result is probably the most sophisticated module with an STM32F407 processor that includes Fast Ethernet and Wi-Fi communication interfaces, a MicroSD card slot, two USB interfaces, a GPIO expansion connector with digital and analog inputs and outputs, and a serial terminal with a command line with USB-C bridge.
Read more: CPU module PI-CPUF407
Introducing the dive computer
In cooperation with the Lost divers club we started to develop a closed circuit rebreather and also a diving computer with decompression calculation. Now we can present the first prototype of LD'sC/DC computer, which is designed for both beginners and advanced divers, as it can work with multiple gases including trimix and also with open or closed circuit option. This computer will be the same for a complete rebreather with oxygen dosing control.
Read more: Introducing the dive computer