Welcome to a new Voltlog, for today’s video I want to share with you some of the projects I currently have on my workbench, these are projects that still need some work to be done before they can be published but this will give you a glimpse of what to expect in the upcoming weeks on the channel.
I have these 3 projects on my workbench, the first one is a multi channel thermocouple data logger device based on an ESP32. This has 10 channels based on the famous maxim thermocouple interfacing chips and all of those are read by the ESP32 and data can be logged on an SD card. This should help me measure the temperature inside the T962 reflow oven that I reviewed a while ago in a grid to check how the heat is distributed inside the oven. I’m pretty sure there are some hotspots inside the oven and some cold spots, I don’t know if there is anything I can do at mechanical/design level to correct for them but it would sure be nice to be able to know what’s going on inside the oven and with such a board I can just connect 10 of these cheap braided K-type thermocouples from aliexpress and hopefully get some consistent readings but more on this in a future video.
The next one is an FT2232 based interface which I designed with the main purpose of allowing me to interface via JTAG to FPGA boards. The chip itself is capable of other protocols as well but my goal here is like I said to interface to various FPGA boards. I plan to dip my toes into the FPGA world and try to get a blinky up and running on an FPGA board for a start. I have designed the board to include a voltage level translator because the chip is running at 3.3V but whatever you connect this to might be running at 1.8 or 2.5V so there is provision for that and it uses USB Type-C like all of the boards that I’ve designed in the past year.
The third project is an ESP32 based CAN development board that I plan to use in my adventures of hacking the CAN bus on my car. I should be able to install this into my car to intercept, modify or send CAN messages while at the same time having two outputs which I can use to control various stuff with on/off 12V power. It has a dc-dc converter on board to step down the car 12V to 3.3V to power the board and if I remember correctly the chip was chosen to have a wide input voltage range to accommodate for any potential spikes on the 12V rail of the car.