4x5-wireless keypad
ogatatsu·4x5-wireless-keypad-pcb
About the 4x5-wireless keypad PCB
4x5-wireless keypad is an open source PCB design by ogatatsu, published on GitHub. It is a 2-layer board measuring 99.1 × 99.1 mm, with 62 components from 19 distinct parts.
Other key parts include the BL652. By type, the board carries 21 diodes, 20 switches, 4 capacitors, 3 resistors, 2 battery holders and 2 LEDs.
It belongs with the iot & wireless designs in this gallery.
From the project
https://creativecommons.org/licenses/by/4.0/

Main components on the 4x5-wireless keypad
4x5-wireless keypad bill of materials (BOM)
62 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BL652 | BL652 | U1 |
| 1 | 32.768kHz | FC-135 | Y1 |
| 2 | AAA | AAABatteryClip | BT1, BT2 |
| 1 | CLK | Wirepad | PCLK1 |
| 1 | DIO | Wirepad | PDIO1 |
| 1 | DTR | Wirepad | PDTR1 |
| 2 | GND | Wirepad | PGND1, PGND2 |
| 1 | RX | Wirepad | PRX1 |
| 1 | TX | Wirepad | PTX1 |
| 1 | VDD | Wirepad | PVDD1 |
| 20 | SW_Push | CherryMx | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +12 |
| 1 | RED | 1608 | LED1 |
| 1 | YELLOW GREEN | 1608 | LED2 |
| 21 | D | Diode | D1, D2, D3, D4, D5, D6, D7, D8 +13 |
| 2 | 12pF | 1608 | C1, C2 |
| 2 | 0.1uF | 1608 | C3, C4 |
| 1 | 1K | 1608 | R1 |
| 1 | 330 | 1608 | R2 |
| 1 | 10K | 1608 | R3 |
4x5-wireless keypad design files
The KiCad project lives in the ogatatsu/4x5-wireless-keypad-pcb repository on GitHub; these links point at the commit this page was built from.
- Layout4x5 key pad.kicad_pcb
4x5-wireless keypad: common questions
How big is the 4x5-wireless keypad PCB?
The 4x5-wireless keypad measures 99.1 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 4x5-wireless keypad?
62 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the 4x5-wireless keypad design files?
From the ogatatsu/4x5-wireless-keypad-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the 4x5-wireless keypad design in my own project?
The repository has no license, so all rights stay with ogatatsu. Use it as a reference, and ask the author before reusing the design.
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