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 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…
This is an awesome design allowing 60V @50A on 4 separate Half H-bridges. The design is a step up from the 30V/20A design using more powerfully MOSFET’s and adding wiring to support higher currents. It is also a Hat design, meaning I can add Hat’s to extend the controller. The pic above show my specialized motor…
This is a micro controller using DRV8313 which basically is 3 x Half H-Bridge drivers in a chip supporting 60V and 2-3A out. The design is excellent for a 3-phase driver, DC Motor or solenoids and work perfectly. The initial version had an issue with the 60V DC/DC that needs to be fixed. DRV8313…
This is the smallest of my dedicated 3-phase controllers using DRV10983 and STM32F030F4. The entire controller is the size of a fingertip and will run a 3-phase motor using sinusoidal algorithm. The controller works, but I was not impressed over it so far because it tend to loose control over the motor I use for…
This is my old universal motor controller that actually worked quite well. The main challenge I had was dodgy MOSFET’s. As I moved on I also moved to 60V and 50A + a Hat design that is a bit larger, but I have been thinking about updating this smaller design as well. Todo on rev…
This is the updated 8 x DC Motor Hat w/16 x Sensor IO’s. I have 3 Hat’s that I will order with PCB stencils this time. This Hat was basically made for a robot arm I have build by DC Motors. It’s a bit of fun to see if I can control the arm automated…
I bought a kit with AD8950 earlier that I consider using to create a programmable function/audio generator. AD8950 can generate waves to very decent frequencies and cost ca 10.- USD. AD8951 cost a bit more and it is straight forward to create a DDS/DAC based on these. But, I also need a driver stage where…