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The circuit and PCB have been produced and tested and basic code is available on github. See the project site on hackaday.io for more information about the project.
Simple count up timer for coffee machine triggered on mains voltage detection using CT on the coffee machines solenoid valve. CT is SCT-013-005
Note this is a slightly modified layout to the first board to space out the components better to allow easier soldering also change ICSP to staggered layout (circuit is identical)
Simple count up timer for coffee machine triggered on mains voltage detecti...
This is a small pcb that is designed to be used on an electric go-kart to display a stopwatch, motor RPMs, and cart speed as well as record this data on an SD card with a time stamp for analysis. The project is Arduino based and is ran off of 7-59 VDC or directly from a 5V source through any of the 5V or VIN pins on the data logger shield (this is not a protected input). It is designed to have w...
1. For L/C meassure by LM311 and oscillation circuit.
2. For FREQ meassure by special input circuit with a capacitive coupling
3. For C meassure by 556N freq to C - range 1-1000 pF
4. For C meassure by 556N freq to C - range 1-1000 nF
![multi freq meter V_02 cover.jpg](//image.easyeda.com/pullimage/YyWhE1CwRVAFl7XpCxxjQZ6YGdweU7GAEVO5MXL3.jpeg)
![multi freq meter V_02.jpg](//image.easyeda.com/...
On reciept of the board and test build I found that I got SCL and SDA on the eeprom mixed up. This means that data can not be written or read with the ISC2 EEPROM. I need to do further testing before updating the design.
This is a Parallax Propeller P8X32A based Mechatronics module V2.1B
The P8X32A is a swiss army knife of microcontrollers with 8 cores (each with dedicated PLLs and counte...