Introduction to MCP2221 USB to UART/I2C Interfacing Chip

A brief introduction to the MCP2221 chip and its specs, circuitry and programming.
GitHub repo for MCP2221 examples:
github.com/kelray/MCP2221-Exa...

[@drstrangelove09]

Thank you so much!!!!!!

[@dany241]

Thank you, Great vid

[@hexdude24]

Is the builtin UART on this chip compatible with old RS232 devices that run around 19 volt signals?

[@KarimElrayes]

Unfortunately not compatible, the output levels are +5 and 0V if you are using +5v supply, and +3.3 and 0 if you are using +3.3v supply.

[@nullpointerworks4036]

Do you know of any method to get a GPIO pin on the MCP2221 to act like a DTR pin like on your regular FT232RL?

[@KarimElrayes]

Unfortunately there is no direct way to set up one of the GPIO as DTR according to the datasheet. You might need to write a specific code using Microchip DLL to control the GPIO pin.

[@FreedomAirguns]

Links in the video description, maybe? :)

[@dileeppaul4301]

Brother, can we programme this chip using pickit3? I couldn't find this in mplab device list. Please advise.

[@KarimElrayes]

Unfortunately bro it cannot be reprogrammed. To my knowledge the flash memory is locked and firmware can't be modified. I read somewhere the MCP2221 is based on a PIC16F14xx microcontroller, I have used a similar one PIC16F1459, which is a 16 pin MCU with built-in USB.

[@ronggohartono8895]

Om bagaimana caranya mengngonekkan kabel midi di piano. Yamaha 250. Hartono tuban jatim makasih

[@phuocangvan5280]

Can we set the i2c clock speed bro?

[@KarimElrayes]

Indeed you can, check the MCP2221 library and C/C++ API manual for details.

[@phuocangvan5280]

@@KarimElrayes I want to change the speed up to 1MHz so can it be possible? and thanks for your reply

[@KarimElrayes]

@@phuocangvan5280 unfortunately this is not possible, the highest I2C speed for the MCP2221 is 400KHz. The FT260 chip can achieve higher I2C speeds.

[@phuocangvan5280]

@@KarimElrayes thanks you so much

[@justforhavens]

This video has great info, but I wish you would not be whiispering. It will be easier to understand and listen to if you just speak with a full normal voice. Sounds like you're trying not to wake up somebody or something. I have to turn it up a lot and then I hear your breath and mouth very loudly, lol. SPEAK! :) Thanks for making this video.

[@KarimElrayes]

That's my normal voice, so, just turn on the volume or get a better pair of speakers lol

[@justforhavens]

@@KarimElrayes I'm using studio monitors, I can hear everything lol. I guess you just don't project your voice very much that's okay