2 layers76.2 × 122.2 mm
Calculator full schematic revB
SCREAM325/TI_INFINITY
contains PCB file for PCBway and GCODE files for speaker case.
116 parts
4 layers142 × 102 mm
LitterWatch
bluetiger9/LitterWatch2LitterWatch - Combating Littering with Edge AI
- Size
- 142 × 102 mm
- Copper layers
- 4
- Thickness
- 2.29 mm
- Parts
- 85
- Nets
- 214
- Pads
- 597
- Tracks, vias
- 1,947, 488
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 Sep 2025
- Updated
- 25 Sep 2025
Overview
LitterWatch is an open-source printed circuit board by bluetiger9, from the bluetiger9/LitterWatch repository on GitHub. It is a 4-layer board of 142 × 102 mm with 85 parts on 214 nets, routed with 1,947 tracks and 488 vias.
It is built around the W25Q128JVSIQ, RT9742GGJ5 and TPS61022, with the ABM8-272-T3 among its other parts. Its parts include 29 capacitors, 17 resistors, 11 connectors, 7 ICs and 3 diodes. It belongs with the RP2350 and Raspberry Pi (Linux) boards of this library.
Main components
4
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
RT9742GGJ5
TSOT-23-5-40℃~+85℃ 1 1A 2.7V~6V 70mΩ Active High High Side Switch Short-Circuit Protection(SCP)、Undervoltage Protection(UVP)、Overcurrent Protection(OCP)、Over Temperature Protection TSOT-23-5 Power Distribution Switches ROHSRichtek TechPower Distribution Switches
TPS61022
UncategorisedTexas Instruments
ABM8-272-T3
SMD3225-4P-40℃~+85℃ 10pF 12MHz 50Ω SMD crystal oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100n | Capacitor_SMD:C_0402_1005Metric | C6, C11, C14, C15, C16, C17, C18, C19, C20, C21, C22, C27, C28 |
| 10 | 10u | Capacitor_SMD:C_0603_1608Metric | C1, C2, C5, C7, C23, C24, C25, C26, C29, C30 |
| 5 | MountingHole | CM5IO:MountingHole_2.7mm_M2.5_DIN965 | H1, H2, H3, H4, H5 |
| 4 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R3, R4, R10 |
| 4 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C8, C10, C12, C13 |
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R7, R15, R16 |
| 3 | LED Green | LED_SMD:LED_0603_1608Metric | D1, D2, D3 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | 18650 | Battery:BatteryHolder_Keystone_1042_1x18650 | BT2, BT3 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R17, R19 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H6, H7 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | 10K | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 10K (DNP) | Capacitor_SMD:C_0603_1608Metric | R13 |
| 1 | 1uH (WE 744316100) | Inductor_SMD:L_Wuerth_HCI-5040 | L2 |
| 1 | 3.3u | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 732k | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 7k | Resistor_SMD:R_0603_1608Metric | R18 |
| 1 | ABM8-272-T3 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_1060_1x2032 | BT1 |
| 1 | COM MODULE | MicroBus:MikroBUS-Large-SMD | J6 |
| 1 | ComputeModule5-CM5 | CM5IO:Raspberry-Pi-5-Compute-Module | Module1 |
| 1 | Conn_01x22_Female | CM5IO:Hirose_FH12-22S-0.5SH_1x22-1MP_P0.50mm_Horizontal | J5 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J9 |
| 1 | DNF | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | JST_SHBM04B-SRSS-TB | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J14 |
| 1 | MCP73831-2 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | Micro_SD_Card_Det | CM5IO:SDCARD_MOLEX_503398-1892 | J7 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | PICO_RESET | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW2 |
| 1 | RP2350_60QFN | Package_DFN_QFN:QFN-60-1EP_7x7mm_P0.4mm_EP3.4x3.4mm_ThermalVias | U1 |
| 1 | RT9742GGJ5 | Package_TO_SOT_SMD:SOT-23-5 | U7 |
| 1 | RY220x | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | SENSOR 1 | MicroBus:MikroBUS-Small-SMD | J3 |
| 1 | SENSOR 2 | MicroBus:MikroBUS-Small-SMD | J4 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW1 |
| 1 | Solar IN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J15 |
| 1 | TPS61022 | Package_DFN_QFN:Texas_RWU0007A_VQFN-7_2x2mm_P0.5mm | U4 |
| 1 | USB3_A | Connector_USB:USB3_A_Molex_48393-001 | J1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J11 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U3 |
The 83 most common of 85 parts.
Similar boards
- 2 layers38.1 × 101.6 mm
- 2 layers60 × 95.6 mm
- 4 layers61 × 85.1 mm
- 2 layers60.1 × 97.1 mm
- 4 layers161 × 87 mm
MainPCB
rohit-env/minideck-pcb
so I went off and designed a whole cyberdeck pcb, it’s kinda sick, it's a full-on deck with ports, buttons, blinky stuff, and that clean hacker aesthetic.
194 parts - 4 layers55 × 100.5 mm
OSS Radio Hardware Design
Arkos-Engineering/HT-15_hardware
We can split this out into separate repos later, right now its very convenient to have everything here.
256 parts72 - 2 layers75 × 40 mm
PicoTop Board Rev2
7west/PicoTop
A very basic computer & OS based on the RP2350 microcontroller
86 parts66
Questions
How big is the LitterWatch PCB?
It measures 142 × 102 mm and has 4 copper layers, 2.29 mm thick.
What parts does the LitterWatch use?
85 parts, built around the W25Q128JVSIQ, RT9742GGJ5, TPS61022 and ABM8-272-T3. 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 LitterWatch KiCad files?
From the bluetiger9/LitterWatch repository on GitHub, at the commit this page was made from: the board is KiCad/LitterWatch.kicad_pcb and its schematic KiCad/CM5_HighSpeed.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LitterWatch design in my own project?
Its repository states no licence, so its author keeps all rights: ask bluetiger9 before reusing the design.