TPS54x60 is a very nice DC/DC converter covering up to 60V, but the circuit I used on the MC3X60V3A Motor Driver snapped at 30V+. I tested with 2 units before consulting a friend that suggested to add a 10uF capacitor very close to VIN. I have yet to test this because I did not want…
SIM7020E is a small module that offer 4G services and access to the new NB-IoT service that is available to give access to remote sensors that earlier was not possible. All-in-All this is just a new wrapping on a service that have been available since GSM and can be achieved with several low cost modules.…
Hall sensor logic 60V DC/DC Converter Gate Drivers Raspberry PI Connector MCU SuperCap for 3,3V on MCU Raspberry PI mount holes Mount holes for heat-sink Leds SWD USB 2 x End point sensors PSU Capacitance CAN port +60V MOSFET Array GND Extra GND Connectors Current Sensors Phase output 2 x Temperature Sensors.
Updated 3D Model 18.dec.2018 This is a bit more than a mockup since it is almost complete, but adding 15mm to an existing design is a lot of extra space. I turned the Hat so that the Raspberry PI Ethernet would be at right. Basically this is 35mm wider than a normal Hat, so it…
This is an unfinished 3D of MC4X60V50A or MC4X for short. I initially stated that I did not want this as a Raspberry PI Hat, but I do have SPI1 available + CAN is already planned. It would make a powerfully module + I could add an isolated GW as an add-on etc. The controller…
This is an early mockup of a NB-IoT/4G/3G/2G/GSM Hat just to illustrate the space needs. My main concerns are signal quality on the antenna part as this module do not have a direct antenna output. Below is a PCB snap-shot showing the details of the antenna layout. I really could have needed a 3rd layer…
I drafted a GSM/GPS module some time ago, but I never ordered it as I decided to ditch that PLC design and pick up a smaller footprint. Time has changed so I want to make a new approach. Using STM32F405RG as core I want to add NB-IoT, LoRa and GPS capabilities. NB-IoT is a new…
I want an Ethernet module to by list of boards. I can always use Raspberry PI 2/3, but I would still like to make my own as well. In the past I have used W5500 a few times, but this time I want to dig into ESP32. ESP32 already have the TCP/IP stack, it has…
One of the challenges I face is that batches with MCU’s from Asia are dodgy. This has been specially bad on STM32F405RG so I want to make myself a MCU tester for Rx and Cx series. I just tried to wire one and it kind-off works, but SWD wiring get to dodgy so I need…
XPortHub feeding from Raspberry PI 3 A+ this time. 2nd board and 3rd MCU. The 1st MCU started behaving strange, so added a 2nd that did not work at all. Finally ripped off an old good one and we have a working board. Basically I need to make myself a tester for these MCU’s. Regardless,…