2 layers156 × 116.4 mm
Toomanykeys left unrouted
jusdisgi/TooManyKeys
Work in progress, new version of BiggieSplays with lots of bells and whistles
82 parts3MIT
6 layers156 × 116.4 mm
Toomanykeys right
jusdisgi/TooManyKeys3Work in progress, new version of BiggieSplays with lots of bells and whistles
- Size
- 156 × 116.4 mm
- Copper layers
- 6
- Thickness
- 1.6 mm
- Parts
- 89
- Nets
- 86
- Pads
- 677
- Tracks, vias
- 626, 72
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 30 May 2025
- Updated
- 20 Jun 2025
Overview
Toomanykeys right is an open-source printed circuit board by jusdisgi, from the jusdisgi/TooManyKeys repository on GitHub, published under the MIT licence. It is a 6-layer board of 156 × 116.4 mm with 89 parts on 86 nets, routed with 626 tracks and 72 vias.
It is built around the SN74LV1T126DBVR-TP, TLV61070ADBV and WS2812B-2020, with the BAV70 among its other parts. Its parts include 41 diodes, 27 switches, 2 capacitors, 2 resistors and 2 ICs. It belongs with the nRF52 and nRF5x boards of this library.
Main components
4
SN74LV1T126DBVR-TP
SOT-23-5-40℃~+125℃ 1 1 1.6V~5.5V 1uA 2.7ns@5V,15pF 74LV 8mA 8mA Power-off isolation、Output enable、Level shifting Tri-State Unidirectional SOT-23-5 Buffers, Drivers, Receivers, Transceivers ROHSTECH PUBLICBuffers, Drivers, Receivers, Transceivers
TLV61070ADBV
SOT-23-6-40℃~+125℃@(TJ) 1 2.2V~5.5V 2.5A 3uA 500mV~5.5V 550kHz、1MHz Adjustable Boost Boost Built-in Yes SOT-23-6 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
WS2812B-2020
SMD,2.2x2mm0.6mA 0.84mm 120us 160mcd 200mcd 2kHz 2mm 2mm 300ns 470.4nm 515.6nm 520mcd 5V 622.5nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit、Integrated intelligent reverse connection protection function Top-mount SMD,2.2x2mm RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
BAV70
SOT-23-55℃~+150℃ 1 Pair Common Cathode 1.25V@150mA 2.5uA@70V 200mA 225mW 2A 6ns 70V SOT-23 Switching Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Switching Diodes
README
README.mdToo Many Keys
Soon to be renamed*
This is a 54-key, ergonomic split keyboard with a few tricks. Some of the features include:
- 1.69in color LCD screen
- Per-key LEDs, using WS2812B-2020
- A roller encoder based on CKW12 by Kumamuk, but integrated into the main PCB
- Kailh PG1316S ultra-low profile switches
- A totally absurd battery to run all of this stuff...5Ahr!!
Schematics and Ergogen, just like PB and Chocolate!
If that seems absurd to you, you need to read my new doc
Work in Progress
I think it might be done? Could it be? Please take a look and let me know if you see anything wrong!
Where is everything?
Left Half Schematic Right Half Schematic
Some pics of the design
*the name has been chosen by the intended end-user, but will not be applied to the board until it actually exists in the real world.
Parts
89| Qty | Value | Footprint | References |
|---|---|---|---|
| 27 | PG1316S | PG1316S | S1, S2, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23 +11 |
| 22 | WS2812B-2020 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | LED2, LED10, LED11, LED12, LED13, LED14, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23, LED25, LED26 +6 |
| 14 | BAV70 | BAV70 SOT23 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14 |
| 7 | ceoloide:mounting_hole_npth | MH1, MH2, MH3, MH4, MH5, MH6, MH7 | |
| 2 | 10μF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 1 | LCD_1.69_Waveshare | LCD1 | |
| 1 | 2.2μH | huntercook:L_CJIANG_FTC404030S_4.1x4.1x3.0_SMD | L1 |
| 1 | 470kΩ | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 51kΩ | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | Battery Connector | ceoloide:battery_connector_jst_ph_2 | JST1 |
| 1 | CKW12 | CKW12 | RE1 |
| 1 | Far Thumb | LED_WS2812B-2020_PLCC4_2.0x2.0mm | LED15 |
| 1 | Inner Bottom | LED_WS2812B-2020_PLCC4_2.0x2.0mm | LED24 |
| 1 | Inner Top | LED_WS2812B-2020_PLCC4_2.0x2.0mm | LED27 |
| 1 | LCD HEADER | Molex_PicoBlade_53261-0871_1x08-1MP_P1.25mm_Horizontal | CONN1 |
| 1 | Outer Bottom | LED_WS2812B-2020_PLCC4_2.0x2.0mm | LED1 |
| 1 | Outer Top | LED_WS2812B-2020_PLCC4_2.0x2.0mm | LED4 |
| 1 | Power SW | ceoloide:power_switch_smd_side | PWR1 |
| 1 | Reset SW | ceoloide:reset_switch_smd_side | RST1 |
| 1 | SN74LV1T126DBVR | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | TLV61070ADBV | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | nice_nano | ceoloide:mcu_nice_nano | MCU1 |
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Questions
How big is the Toomanykeys right PCB?
It measures 156 × 116.4 mm and has 6 copper layers, 1.6 mm thick.
What parts does the Toomanykeys right use?
89 parts, built around the SN74LV1T126DBVR-TP, TLV61070ADBV, WS2812B-2020 and BAV70. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Toomanykeys right KiCad files?
From the jusdisgi/TooManyKeys repository on GitHub, at the commit this page was made from: the board is toomanykeys_right.kicad_pcb and its schematic toomanykeys_left.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Toomanykeys right design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).