The diagram above show the minimum needed for any mains PSU. We need a On/Off switch and a fuse. This can be purchased as a single unit. The 2nd is the PSU itself that is available in numbers on the net in nice modules. A 12V/10A module cost < 10.- USD and they can be…
I received a DPS5020 module yesterday, well packed. This is the 0-50V/0-20A Lab PSU module I mentioned earlier. Assembling and switching this on was straight forward, and using it was a very positive surprise. I was initially concerned about it’s HMI, but I am actually impressed by the cleverness of this design. This first picture…
This is the test suit for Smart SPI. This is an old pic, but I will upload a newer one showing RPI mounted behind the 32xServo and how we access SWD & Raspberry PI for development. The mechanics of thos robot is dodgy, but it is a very good and fun test kit. I also…
I need a specialized SPI driver to support the Smart SPI concept. The block diagram above show the logical view with device to device communication, while the diagram below show the physical design. Just to remind everyone – in the logical concept we communicate device to device. In the physical this is done by a…
I have already talked about using this module as key for a home automation central. I am going to look into a few extensions (or additional module). A normal wireless have a range on ca 100m, but dealing with home automation you could use 1Km range – solutions for that exist. Another change is the…
This table is a all 32 channels on the 32 x Servo / IO Hat mapped out per channel. Explenation under the table. Ch1 PC1 Analogue In Digital In Digital out Servo Software PWM Ch2 PC2 Analogue In Digital In Digital Out Servo Software PWM Ch3 PC3 Analogue In Digital In Digital Out Servo Software…
Visual Studio Code is more an editor with debugger support than a full IDE, it takes a bit fiddling to set up and get right. Basically you don’t have any setup screens and have to edit your project in files with XML syntax. I am not sure if I will use this for everything, but…
You will find breakout’s for VL53L0X in numbers on net shops, they are still a bit price around 10ich USD – but the chip cost 2.6 USD so I expect them to drop down fast – competition & popularity is to high for them not to as soon as the vendors sort their logistics out.…
This is VL53L0X from ST, a 4.4 x 2.4mm ranging sensor that can measure accurate distance up to 200mm (2 meters). This is a BGA with a I2C interface and have an ST interface library. Several breakout boards exist, but we need to be a bit clever here – I want the sensors mounted in…
If I ever want to know where my wife’s cat’s are hiding I only need to start this 12 servo monster – I instantly have a horde of cat audience… I will mount the control system on the inside of the box, but I still have to sort out the battery & PSU. Knowing that…