{"product_id":"inputronic-keyboard","title":"Inputronic KEYBOARD","description":"\u003cp\u003e\u003cstrong\u003eInputronic Keyboard\u003c\/strong\u003e is a complete 80-key keypad built around TI's \u003cstrong\u003eTCA8418\u003c\/strong\u003e I2C keypad scanner. All 80 tactile switches are wired into an 8x10 matrix connected to the chip's row and column pins, so the board handles scanning and debouncing on its own instead of needing 18 GPIO pins on your microcontroller.\u003c\/p\u003e\n\n\u003cp\u003eIt talks over \u003cstrong\u003eI2C\u003c\/strong\u003e at a fixed address of \u003cstrong\u003e0x34\u003c\/strong\u003e, which can't be changed since there's no address-select jumper. The chip runs a 10-event FIFO so key presses and releases queue up instead of getting lost, includes hardware debouncing, and supports a programmable two-key lock and unlock sequence. Soldered Arduino and MicroPython libraries are available that decode the raw FIFO events into key press and release events you can use directly, without dealing with row and column scan codes yourself. Two \u003cstrong\u003eQwiic connectors\u003c\/strong\u003e handle the wiring without soldering.\u003c\/p\u003e\n\n\u003cp\u003eThe board runs on \u003cstrong\u003e1.65V to 3.6V\u003c\/strong\u003e, draws about 3 µA in standby, and is rated for 2000V HBM and 1000V CDM ESD protection on every pin. It measures \u003cstrong\u003e136 x 60 mm\u003c\/strong\u003e, with two mounting holes sized for M3 screws.\u003c\/p\u003e","brand":"Soldered Electronics","offers":[{"title":"Default Title","offer_id":65010594480477,"sku":"333360","price":11.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/5029\/1549\/files\/izo_w.png?v=1783064980","url":"https:\/\/soldered.com\/products\/inputronic-keyboard","provider":"Soldered Electronics","version":"1.0","type":"link"}