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and lets you charge-and-boost at the same time without any interruption on the output so its fine for use as a "UPS" (un-interruptable power supply)
The SpikenzieLabs Useless Machine is our take on the basic concept
as it uses fewer pins: analog 4 and 5 are used for I2C (of course you can still connect other I2C devices to the bus)
Weight: 15g
The STEMMA QT connectors on either side are compatible with the SparkFun Qwiic I2C connectors
Monochrome 128x32 SPI OLED graphic display for Raspberry Pi or Arduino kit and lets you charge-and-boost atThese displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. This display is made of 128x32 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its crispness! The