
I've used these tiny things on several projects. I log into TRINKETBOOT and flash the firmware using the Arduino IDE. Remember you can use UART and I2C together or SPI separately. If you use SPI you lose UART and I2C. And remember, if you're using UART for serial communication, it's actually Serial1 in your code. for example. Serial1.print("Example"); It is not shared with USB. The Dotstar LED is internally connected to the digital pins D7 - data, D8 - clk

Gikfun Screw Shield Expansion Board: Enhance Arduino UNO R3 with the EK7007 Add-On
11 Review

π Ultimate BBC Micro bit Sensor Starter Kit: Keyestudio 37-in-1 Box with Tutorial, Compatible with V1.5 & V2, Gift for Kids and Adults (Microbit Board Not Included)
11 Review

GeeekPi Raspberry Pi Cluster Case with Cooling Fan and Heatsink for Pi 4 Model B, 3 Model B+ & 3/2 Model B
11 Review

Vilros Raspberry Pi 4 4GB Complete Starter Kit - Black Fan-Cooled Aluminum Case for Heavy-Duty Performance
12 Review

300Pcs Black Replacement Screws Kit for Lenovo Toshiba Gateway Samsung HP IBM Dell Sony Acer Asus Laptop Notebook Computer SSD Hard Disk SATA
5 Review

8Pcs Computer Thumb Screws Black
4 Review

π§ TWYZONE Set: 10pcs Repair Replacement Screws + 1pcs Philips Head Screwdriver for Unibody MacBook Pro - A1278 A1286 A1297 - Bottom Case Compatibility (Not for Retina Display)
6 Review

M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review