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I find that the free tools put forth by Microchip are fine for everyday use. Don't call me an expert on it, but I think mikroelektronika costs too much for low level designs, ironically what its intended audience is. But again, don't quote me. The PICKit3 costs $45 last I checked. It may have...
Well it looks like the counter is controlled by a custom die IC. I am guessing it has no communications in or out of the die other than the buttons and the actual pins for the LCD. I would suggest desoldering the LCD and start looking for a part number or reverse engineering the pinouts.
Hello,
I am currently designing a electronic design that requires an Optocoupler connected to a 20 Vrms-400 Vrms AC voltage source. It should be designed to accept a large range of voltages. I was currently thinking about how to current limit the current going into the optocouplers LED. The...
Transformer for a MAX2981
Hello,
I have recently started a design with a MAX2981 analog front end chip. This specific chip is an analog front end for power line communication. Within the example circuitry found here (page 12) the schematic calls for a 1:1 secondary tapped transformer. Upon...
Hello,
I have a board that is being designed that I need to interface a 120V AC squirrel cage motor Auxillary Contact. In order to determine the type of relay I need, I need to know the maximum current one of these starters can draw through the button. I was wondering if anyone knew what the...
Thank you so much in both of your replies. I'm not sure why I overlooked a automotive regulator but luckily I found a regulator that will work with my current circuit. I will try one of these regulators and with luck it will solve my issue.
Thank you both for your great replies.
Hello.
I have designed a circuit to operate in a CAT Loader. This is not a modern CAT, but one from the 1980's. These Loaders run on 24V batteries. I was planning on just hooking a LDO linear regulator up to this supply. After a perfectly operating board was installed(Note: 3.3v system), the...
I highly suggest moving to a chip with I2C. Microchip has libraries for communicating with it, and it isn't very complicated if you are going to use a single master architecture.
This may not work but have you tried UART with a address header? You could send one byte as the address, then the second as the data, and just keep repeating that. It may be inefficient, but may work, seeing your requirement of low device count.
For a PIC32, I suggest using the <plib.h> file in your include section and then run off the UART functions. Documentation for this should be found in the microchip folder of your program files, then under this file branch or whatever it is called...
For the lower level pickit2 is fine but if you plan on moving on at some point to the 16 or 32 bit devices microchip makes, I would get the PK3. They have ironed out the majority of the bugs, and supports a much wider range of devices. I have one and I find it fine when my ICD3 is acting up...
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