OpenTKL
OpenTKL is an open source AVR/Arduino PCB design by ojthetiny: a 2-layer, 344 × 124 mm board with 175 components (33 distinct parts). It is built around the ATMEGA32U4-M. Filed under keyboards.
Fully Open source TKL keyboard
Features: - Top Mount USB-C or Unified Daughterboard. - In switch indicator lights for Caps Lock, Scroll Lock, and Layer on Esc. - Atmega 32u4-mu MCU - Support for both MX and Alps switches - Support for gummy worm mount boards, tabs in the same spaces as Hineys h88 pcb - RGB breakout between the nav and arrow clusters for 1.2og like designs - ISP breakout for if you know what you're doing ;)
Built around
Parts list
175 components, 33 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA32U4-M ATmega32U4-M | QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm | U1 |
| 1 | C32180 Resonator_Small | Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm | Y1 |
| 1 | Reset Jumper | SW_SPST_TL3342 | J1 |
| 1 | CONN_RGB | PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | C160404 CONN_DB | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J3 |
| 1 | ISP_Breakout | PinHeader_2x03_P2.54mm_Vertical | J4 |
| 3 | .1u | C_0402_1005Metric | C_DECOUP1, C_DECOUP2, C_DECOUP3 |
| 1 | 10u | C_0402_1005Metric | C_DECOUP4 |
| 1 | 1u | C_0402_1005Metric | C_UCAP1 |
| 1 | C151162 Polyfuse_Small | Fuse_0805_2012Metric | F1 |
| 1 | MX-LED | MX-1.25U | MX1 |
| 2 | MX-LED | MX-1U | MX4, MX95 |
| 1 | MX-LED | MX-1.75U | MX7 |
| 1 | MX-NoLED | MX-ISO-ReversedStabilizers | MX80 |
| 2 | 22 | R_0402_1005Metric | R_DATA1, R_DATA2 |
| 2 | 10k | R_0402_1005Metric | R_HWB1, R_RST1 |
| 3 | 220 | R_0402_1005Metric | R_INDICATOR1, R_INDICATOR2, R_INDICATOR3 |
| 2 | 5k1 | R_0402_1005Metric | R_USB1, R_USB2 |
| 1 | HRO-TYPE-C-31-M-12 | HRO-TYPE-C-31-M-12-Assembly | USB1 |
| 8 | MX-NoLED | MX-1.25U-NoLED | MX2, MX3, MX10, MX17, MX60, MX61, MX73, MX81 |
Show 13 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 78 | MX-NoLED | MX-1U-NoLED | MX5, MX11, MX12, MX13, MX14, MX15, MX16, MX18 +70 |
| 6 | MX-NoLED | MX-1.5U-NoLED | MX6, MX9, MX23, MX67, MX86, MX90 |
| 1 | MX-NoLED | MX-2.25U-NoLED | MX8 |
| 1 | MX-NoLED | MX-6.25U-ReversedStabilizers-NoLED | MX39 |
| 1 | MX-NoLED | MX-7U-ReversedStabilizers-NoLED | MX45 |
| 1 | MX-NoLED | MX-2.75U-NoLED | MX72 |
| 1 | MX-NoLED | MX-1.75U_NoLED | MX78 |
| 1 | MX-NoLED | MX-2.25U-ReversedStabilizers-NoLED | MX84 |
| 1 | MX-NoLED | MX-2U-NoLED | MX89 |
| 44 | BAV70_SMALL BAV70_Small | SOT-23 | D1, D2, D3, D4, D5, D6, D7, D8 +36 |
| 1 | PRTR5V0U2X | SOT-143 | D18 |
| 3 | C64898 D_Small | D_SOD-123 | D46, D47, D48 |
| 1 | D_Small | D_SOD-123 | D79 |
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