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License: CC-BY-NC-SA 3.0

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Update time: 2022-03-23 10:19:37
Creation time: 2019-03-30 11:44:19
Description
*Macro keyboard based on ATmega328P.* Keyboards are one of the most important input device for a computer. A standard keyboard has more than 100 different keys for different purposes. Yet sometimes it feels like it'd be great if there're **some programmable buttons** to execute certain **commands** or a particular set of **key combination**. Keeping that in mind I have designed this **Ardu Keyboard**, *a programmable macro keyboard based on popular ATmega328P microcontroller*. - It has 9 push buttons connected in a 3 by 3 matrix format. - ATmega328P DIP IC in bare minimum configuration - A USB 2.0 male connector - CH340C USB to TTL converted IC, to talk to the microcontroller over USB. [Tutorial Video](https://youtu.be/4IlrUkVi8kw) [Documentation](https://www.hackster.io/palsayantan/ardu-keyboard-ef4d46) [Code](https://github.com/palsayantan/ArduKeyboard) [Buy This Project](https://www.tindie.com/products/19411/) [Follow me on Instagram](https://www.instagram.com/electropoint4u/)
Design Drawing
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ID Name Designator Footprint Quantity BOM_Manufacturer Part
1 16MHz X1 OSC-TH_L10.0-W4.5-P5.00 1 X49SD16MSD2SC
2 100nF C5,C3 CAP-TH_L4.5-W3.0-P5.00-D1.2 2 RCER71H104K0K1H03B
3 CH340C U2 SOP-16_L10.0-W3.9-P1.27-LS6.0-BL 1 CH340C
4 Switch,12*12*7.3Plastic head,260G, 0.25mm,Straight line KEY1,KEY2,KEY3,KEY4,KEY5,KEY6,KEY7,KEY8,KEY9,KEY10 KEY-TH_4P-L12.0-W12.0-P5.0-LS12.5 10 Switch,12*12*7.3Plastic head,260G, 0.25mm,Straight line
5 ATMEGA328P-PU U1 DIP-28_L34.6-W7.3-P2.54-LS10.2-BL 1 ATMEGA328P-PU
6 22nF C1,C2 CAP-TH_L5.0-W2.5-P2.54-D0.7 2 CC1H223ZA1FD3F4D10MF
7 LED-3MM LED1 LED-3MM-RED 1 LED-3MM-RED
8 USB-MALE USB1 USB-A-SMD_USB-302S 1 USB-302S
9 10K R1,R2 RES-TH_BD1.9-L3.4-P7.40-D0.5 2 MFR-12JT-52-510K
10 10uF C4 CAP-TH_BD5.0-P2.5-D0.5-FD 1 RL1E100MC110A00CV0

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