2 layers100.1 × 100 mm
Utility board
jusdisgi/sweepish
Basically a Ferris Sweep with a Seeed XIAO nrf52840 and Choc switches. My first ever attempt at PCB design.
49 parts
2 layers100.1 × 100 mm
Utility board
jusdisgi/sweepishBasically a Ferris Sweep with a Seeed XIAO nrf52840 and Choc switches. My first ever attempt at PCB design.
- Size
- 100.1 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 115
- Nets
- 147
- Pads
- 623
- Tracks, vias
- 414, 24
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 6 Apr 2025
- Updated
- 30 Jun 2025
Overview
Utility board is an open-source printed circuit board by jusdisgi, from the jusdisgi/sweepish repository on GitHub. It is a 2-layer board of 100.1 × 100 mm with 115 parts on 147 nets, routed with 414 tracks and 24 vias.
It is built around the SN74LV1T126DBVR-TP, TLV61070ADBV and BAV70. Its parts include 8 connectors, 6 diodes, 5 switches, 2 capacitors and 2 resistors. It belongs with the keyboards and input boards of this library.
Main components
3
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
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.mdsweepish
Basically a Ferris Sweep with a Seeed XIAO nrf52840 and Choc switches. My first ever attempt at PCB design.
I watched Joe Scotto's YouTube video on KiCad and figured I would try to replicate my own keyboard (a Sweep Bling LP from Keebmaker) without looking at any existing board designs. Well, except the 3x3 macropad in the video of course. I also wanted to use the XIAO BLE because I just ordered some. I feel like it came out pretty well for a first attempt. I hope to have some more knowledgeable people take a look and tell me how I can do better.
Now updated on day 2...learned that a)the battery connects underneath the XIAO, which my design did not allow for, and b)the footprints from Seeed's librery are junk and don't even have those pins. So I got a better footprint from https://github.com/ebastler/marbastlib and added that, a JST connector for the battery, a power switch and a reset button.
All of that is in the sweepish_v2 directory. Have a look!
Parts
115| Qty | Value | Footprint | References |
|---|---|---|---|
| 29 | , , , , , , , , , , , , , , , +13 | ||
| 10 | 5diode_Breakout_Holes | XX17, XX18, XX18, XX19, XX19, XX19, XX21, XX21, XX21, XX22 | |
| 5 | HLC_Custom:PG1316S_Square_Pads | S1, S3, S5, S7, S9 | |
| 4 | D_MMBD4148PLM | D1, D2, D3, D8 | |
| 4 | xiao_plus_cutout | J1, J2, J3, J4 | |
| 4 | Conn_01x01_Pin | CKW12:my_mount_hole_M2_pad | J1, J2, J3, J4 |
| 4 | MOUNTINGHOLE2.5 | Adafruit ANO Rotary Encoder Breakout:MOUNTINGHOLE_2.5_PLATED | U$25, U$27, U$29, U$30 |
| 3 | XIAO_Breakout_Holes | MCU1, MCU2, MCU3 | |
| 3 | ceoloide:battery_connector_jst_ph_2 | JST1, JST1, JST1 | |
| 2 | 10μF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | Battery Connector | Molex_Pico_EZMate_Plus_1x02 | CONN1, CONN1 |
| 2 | FIDUCIAL_1MM | Adafruit ANO Rotary Encoder Breakout:FIDUCIAL_1MM | FID3, FID4 |
| 1 | Adafruit ANO Rotary Encoder Breakout:PCBFEAT-REV-040 | U$33 | |
| 1 | Adafruit ANO Rotary Encoder Breakout:ADAFRUIT_3.5MM | U$32 | |
| 1 | Adafruit ANO Rotary Encoder Breakout:1X09_ROUND_70 | JP3 | |
| 1 | SOT-23 | D5 | |
| 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 | BAV70 | BAV70 SOT23 | D6 |
| 1 | ENCODER_ANO | Adafruit ANO Rotary Encoder Breakout:ENCODER_ANO | X1 |
| 1 | SN74LV1T126DBVR | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | TLV61070ADBV | Package_TO_SOT_SMD:SOT-23-6 | U1 |
The 83 most common of 115 parts.
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Questions
How big is the Utility board PCB?
It measures 100.1 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Utility board use?
115 parts, built around the SN74LV1T126DBVR-TP, TLV61070ADBV 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 Utility board KiCad files?
From the jusdisgi/sweepish repository on GitHub, at the commit this page was made from: the board is teeth/utility_board.kicad_pcb and its schematic sweepish/sweepish.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Utility board design in my own project?
Its repository states no licence, so its author keeps all rights: ask jusdisgi before reusing the design.