The first draft of rev 1.1 of 30V 20A Motor Driver. The differences are that I replaced the DC/DC with a 78M12 (linear regulator) for simplicity and cost, replaced INA210 with INA193/INA194/INA195, added 2 temperature sensor on-board and replaced connectors with te smaller JST Micro connectors. I also combined 3 connectors to one. I also…
This is an early beta of the HMI Designer. The idea is that you draw your HMI displays, save them as XML and then send them to a HMI Browser. The Browser will execute the graphics and send back user events allowing a system with no knowledge of HMI, how or what to make use…
This was my first project that got me started on electronics again. The initial design did not work at all. It used an STM32 on one side and ESP-03 on the other which created too much interference + I had selected the wrong type H-Drive. The MCU and PSU design did however work well and…
This diagram illustrate the HMI solution the way I am planning it. I would like one external RS485/UART so I can attach the display to any embedded solution. CAN, USB and SPI Backbone is mandatory. And I think SPI Half Duplex will do fine over max ca 50cm that we talk about here. SPI is…
I want to work on creating a modular HMI solution. I already have Raspberry PI with HDMI, Keyboard and Mouse interface, but I need a solution for smaller displays, specialized button’s and knobs to go on instrument type projects. The concept I like is that an embedded device can store it’s own interface and then…
This DC/DC Converter works well. It was only a test project to get TPS54x60 working. The capacitors are to tall and to tight, otherwise the project was a success.
This provides a NB-IoT module with SIM card and antenna on a Raspberry PI Hat format. NB-IoT requires a mobile phone subscription and allow you to send sensor data real-time.
This is one of my more exiting projects as I add a LoRa transmitter and GPS to a Hat. E22-900M30S support 12km range while the smaller E22900M22S support ca 6km Range. I have received units and PCB so just waiting for a time-slot to work on this Hat. Raspberry PI Hat format 42Mbps SPI backbone…
Many of my newer devices have CAN so I wanted a simple USB(CAN adapter. It is nothing special with this project. I used a STM32F105 with USB on one side and CAN on the other. A minimalistic UDB-CAN Adapter just6 to avoid the need to pay a fortune for these. The first rev 1.0 missed…
This is a specialized 3-phase driver that uses DRV8301. It is more narrow than the 4 channel design and not so complicated to build. I did this design before I did the larger 4 channel design so it is several things on this design I improved on the 4 channel design. Temperature sensors are still…