2 layers90.5 × 50 mm
Main control board
jamro/tiny-engineer
A small desktop robot that brings an AI coding assistant to life, physically acting out when it reads files, thinks, writes code, and finishes work.
42 parts1.1k
4 layers65 × 30 mm
TinyNumberHat
ADDTDR/TinyNumberHat2Red ALS314 | Green AL304V :-------------------------:|:-------------------------: | | Clock example
- Size
- 65 × 30 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 62
- Pads
- 217
- Tracks, vias
- 1,112, 154
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Nov 2023
- Updated
- 19 Mar 2025
Overview
TinyNumberHat is an open-source printed circuit board by ADDTDR, from the ADDTDR/TinyNumberHat repository on GitHub, published under the MIT licence. It is a 4-layer board of 65 × 30 mm with 38 parts on 62 nets, routed with 1,112 tracks and 154 vias.
It is built around the SM04B-SRSS-TB(LF)(SN). Its parts include 9 resistors, 4 capacitors, 4 switches, 2 diodes and 2 connectors.
Main components
1README
README.mdTinyNumberHat
| Red ALS314 | Green AL304V |
|---|---|
 |  |
 |  |
Clock example
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | ALS314 | LTP-305G:ALS314 | DPY1, DPY2, DPY3, DPY4, DPY5, DPY6, DPY7, DPY8, DPY9 |
| 4 | RPi_Hat:RPi_Hat_Mounting_Hole | , , , | |
| 4 | 33k | Resistor_SMD:R_0603_1608Metric | R1, R2, R8, R9 |
| 4 | 47k | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R6 |
| 4 | SW_Omron_B3FS | Button_Switch_SMD:SW_SPST_Omron_B3FS-105xP | SW1, SW2, SW3, SW4 |
| 3 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2, C3, C4 |
| 2 | 1N4148 | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 15uF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C1 |
| 1 | GPIO | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm | JP1 |
| 1 | SM04B-SRSS-TB(LF)(SN) | LTP-305G:JST_SM04B-SRSS-TB(LF)(SN) | J2 |
| 1 | SamacSys_Parts_HT16K33-28SOP | Holtek:SOIC127P1031X264-28N | IC1 |
Questions
How big is the TinyNumberHat PCB?
It measures 65 × 30 mm and has 4 copper layers, 1.6 mm thick.
What parts does the TinyNumberHat use?
38 parts, built around the SM04B-SRSS-TB(LF)(SN). 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 TinyNumberHat KiCad files?
From the ADDTDR/TinyNumberHat repository on GitHub, at the commit this page was made from: the board is PCB/TinyNumberHat.kicad_pcb and its schematic PCB/TinyNumberHat.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TinyNumberHat 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).
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