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Soldered Inputronic GRID

A 4x4 pad of 16 silicone buttons, each with its own RGB LED, read and lit over I2C through one Qwiic connection. An onboard ATtiny404 scans the keys and drives the LEDs, so your microcontroller only sends short I2C commands to the board, at the default address 0x30.

Soldered Inputronic GRID at an angle: a square purple board with sixteen key pads in a 4x4 grid, an RGB LED at the centre of each pad
Isometric view
Top view of the Soldered Inputronic GRID: sixteen key pads in a 4x4 grid, each with an RGB LED at its centre
Top view
Back of the Soldered Inputronic GRID: four Qwiic connectors around the ATtiny404 at the centre, a set of 3V3, SCL, SDA and GND solder pads at each edge, jumper JP5 and the UPDI programming pads
Back view

This documentation is for​

Soldered Inputronic GRID at an angle: a square purple board with sixteen key pads in a 4x4 grid, an RGB LED at the centre of each padProductSoldered Inputronic GRID4x4 silicone button pad with an RGB LED under every key, controlled over I2C.SKU 333362ShopBuy it on our shopThe Soldered shop page for this product, once it is listed.https://soldered.com/products/soldered-inputronic-gridOpen the shop page

At a glance​

InterfaceI2C, default address 0x30, changeable by command
Main ICATtiny404, preprogrammed
Buttons16 silicone keys in a 4x4 grid
LEDs16 WS2812B-2020 RGB, one under each key
Voltage3.3 V over Qwiic, no onboard regulator
Connectors4 × Qwiic, I2C solder pads, UPDI programming pads
Dimensions60 × 60 mm
SoftwareArduino and MicroPython libraries

What's in the box​

QtyItemNotes
1Soldered Inputronic GRID (main product)SKU 333362