Hi guys!
I would like to acquire the LCR Module directly from RedPitaya's website, but It's too expensive (~400€). Could anyone inform me some info about this module? Which is the onboard ic? I'm aiming to design my own LCR module.
Thanks in advance!
Best regards!
LCR Module - Onboard ic
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Re: LCR Module - Onboard ic
According to the source code, it's PCA9555 with the address set to 0x20.
The schematic is more or less clear from this picture.
Last edited by pavel on Wed Sep 23, 2020 10:14 am, edited 4 times in total.
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Re: LCR Module - Onboard ic
Correction to my previous post. After carefully counting the pins on the picture, I'd say that it's MCP23017.
The addresses and the names of the registers in the source code correspond exactly to those of the MCP23017 that can be found on the pages 17-18 of its datasheet.
The addresses and the names of the registers in the source code correspond exactly to those of the MCP23017 that can be found on the pages 17-18 of its datasheet.
Last edited by pavel on Tue May 29, 2018 6:48 am, edited 1 time in total.
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Re: LCR Module - Onboard ic
The values of the shunt resistors that are switched by the relays can also be found in the source code.
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Re: LCR Module - Onboard ic
Sorry to necrobump this old thread. The link is dead leaving a hole. Can the hole be filled? Thx.
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Re: LCR Module - Onboard ic
I've updated the link to the picture.
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Re: LCR Module - Onboard ic
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