Re-spinning a board for chip shortage management… and bumping in a quad usb-to-uart chip!
We redesigned many of our CP2104 boards for the almost-but-not-quite-pin-compatible CP2012N … only to find that now that part is affected by the shortage / price increases that have been hammering everyone. We did find some great ‘drop-in’ compatible USB-to-serial adapters from @WCH_TECH called CH9102F, and we’re using them in a few ESP32 boards for now. So far they’re a fair replacement. Since we expect we won’t be able to stock or standard CP2102 or CP2104 ‘UART friend’ we just swapped out the silk to make a CH9102F so folks can verify functionality without hot airing parts like we did. While we were on the WCH site to grab drivers we noticed they had a QUAD UART chip! – it even can come with USB HS for piping lots of data. This could be kinda handy, we have gotten requests for dual/quad uart adapters before. A google image search pops up a few folks who have used this chip to make quad-RS232 driver boards, so it seems promising!
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.