Review on π HiLetgo ATmega2560 16AU Expansion Ultrasonic Communication: Unleash Versatile Connectivity by Nick Kirschenmann
Great header pinout, but note the short across the USB connector.
On the one hand I like the pinout and header. On the other hand, the power jumper is right above the USB screen, so it shorts everything out when you press the screen all the way down. Also, due to the specified contacts, you cannot fully insert it into the megaphone. There's nothing you can't fix, desolder, slide up, and some tape is a hack or longer pins for the Arduino stand.
- The board not only contains all the digital and analog interfaces for the control line order form, but also a dedicated Bluetooth module communication interface, an SD card module communication interface, and APC220 RF wireless module communication. RB URF v1.1 ultrasonic sensor interface and interface, independent expansion is simpler and more convenient.
- Long delivery time
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