4 layers16 × 44 mm
Pilkbrain
cr1tbit/pilkbrain
The schematic is still a bit messy, just for the reference for now.
106 parts1
4 layers35 × 50 mm
Tama
rough-rat/tama- Size
- 35 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 74
- Nets
- 69
- Pads
- 300
- Tracks, vias
- 753, 117
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Oct 2025
- Updated
- 31 Dec 2025
Overview
Tama is an open-source printed circuit board by rough-rat, from the rough-rat/tama repository on GitHub. It is a 4-layer board of 35 × 50 mm with 74 parts on 69 nets, routed with 753 tracks and 117 vias.
It is built around the ESP32-S3-WROOM-1-N8, ALS-PT204-6C/L177 and HDC1080DMBR, with the BQ24073RGTR, MMA8451QR1 and SM02B-GHS-TB(LF)(SN) among its other parts. Its parts include 29 resistors, 23 capacitors, 8 ICs, 3 switches and 2 diodes. It belongs with the ESP32 boards of this library.
Main components
12
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
ALS-PT204-6C/L177
插件,D=3mm-40℃~+85℃ 2.5V~5.5V Light Intensity 插件,D=3mm Ambient Light Sensors ROHSEverlight ElectronicsAmbient Light Sensors
HDC1080DMBR
WSON-6(3x3)-40℃~+125℃ 0%RH~100%RH 1.3uA 14bit 2.7V~5.5V I2C ±0.2℃ ±2%RH WSON-6(3x3) Temperature and Humidity Sensor ROHSTexas InstrumentsTemperature And Humidity Sensor
BQ24073RGTR
QFN-16-EP(3x3)-40℃~+125℃ 1.5A 4.2V 4.35V~6.4V 50uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
MMA8451QR1
QFN-16(3x3)-40℃~+85℃ 1.8uA 1.95V~3.6V 14bit Accelerometer I2C X,Y,Z ±8g 运动事件检测 QFN-16(3x3) Accelerometers ROHSNXP SemiconductorsAccelerometers
SM02B-GHS-TB(LF)(SN)
SMD,P=1.25mm,卧贴-25℃~+85℃ 1 1.25mm 1A 1x2P 2 2P 4.13mm 4.25mm 5.75mm 50V Auxiliary Solder Pin GH PA9T Phosphor bronze Surface Mount, Right Angle Tin UL94V-0 White SMD,P=1.25mm,Surface Mount，Right Angle Wire To Board Connector ROHSJSTWire To Board Connector
SPX3819M5-L-3-3
SOT-23-5-40℃~+85℃@(Ta) 1 20V 3.3V 420mV@(100mA) 500mA 5uA 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsSY6280AAC
SOT-23-5-40℃~+125℃ 1 2.4V~5.5V 80mΩ Active High High Side Switch Overcurrent Protection(OCP)、Over Temperature Protection SOT-23-5 Power Distribution Switches ROHS矽力杰silergyPower Distribution Switches
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
EVQPUC02K
SMD,4.7x4.5mm-20℃~+70℃ 1.65mm 100,000 cycles 12V 2.2N 4.5mm 4.7mm 50mA PC Pin Rectangular Button SPST Surface Mount, Right Angle SMD,4.7x4.5mm Tactile Switches ROHSPanasonicTactile Switches
GT-USB-7055E
SMD-40℃~+85℃ 1 10,000 Cycles 16P 24V 5.7mm 5A Black Female Surface Mount,Vertical Type-C USB 2.0 SMD USB Connectors ROHSG-SwitchUSB Connectors
MIC-4013-G-G00
SMD,D=4mmMicrophonesSAMZO
README
README.mdtama
Parts
74| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100n | Capacitor_SMD:C_0402_1005Metric | C5, C6, C7, C8, C10, C13, C16, C17, C19, C20, C21, C22, C23 |
| 11 | 3k | Resistor_SMD:R_0402_1005Metric | R1, R8, R13, R14, R16, R20, R21, R23, R25, R26, R27 |
| 10 | 10u | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C9, C11, C12, C14, C15, C18 |
| 8 | 100k | Resistor_SMD:R_0402_1005Metric | R9, R10, R11, R17, R19, R24, R28, R29 |
| 6 | 10k | Resistor_SMD:R_0402_1005Metric | R4, R5, R7, R15, R18, R22 |
| 4 | 5.1k | Resistor_SMD:R_0402_1005Metric | R2, R3, R6, R12 |
| 2 | EVQPUC02K | easyeda2kicad:SW-SMD_EVQPUD02K | SW1, SW2 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP1, TP2 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q5 |
| 1 | ALS-PT204-6C/L177 | easyeda2kicad:SENSOR-TH_BD4.0-P2.54-D0.5-1 | U7 |
| 1 | BQ24073RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm_ThermalVias | U2 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J4 |
| 1 | Conn_01x12 | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J1 |
| 1 | ESP32-S3-WROOM-1 | Espressif:ESP32-S3-WROOM-1 | U4 |
| 1 | GT-USB-7055E | easyeda2kicad:USB-C-SMD_GT-USB-7055E | USB1 |
| 1 | HDC1080DMBR | easyeda2kicad:SENSOR-SMD_HDC1080DMBR | S1 |
| 1 | LED_RED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LED_WHITE | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | MIC-4013-G-G00 | easyeda2kicad:MIC-SMD_BD4.0-4013_SMDA | MIC102 |
| 1 | MLT-8530 | easyeda2kicad:BUZ-SMD_4P-L8.5-W8.5-P8.50-BR | BUZZER2 |
| 1 | MMA8451QR1 | easyeda2kicad:QFN-16_L3.0-W3.0-P0.50-TL_FXOS8700CQR1 | U9 |
| 1 | SM02B-GHS-TB(LF)(SN) | easyeda2kicad:CONN-SMD_SM02B-GHS-TB-LF-SN | U5 |
| 1 | SPX3819M5-L-3-3 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | SY6280AAC | easyeda2kicad:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL | U3 |
| 1 | TestPoint_2Pole | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | TP3 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U6 |
Questions
How big is the Tama PCB?
It measures 35 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Tama use?
74 parts, built around the ESP32-S3-WROOM-1-N8, ALS-PT204-6C/L177, HDC1080DMBR and BQ24073RGTR. 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 Tama KiCad files?
From the rough-rat/tama repository on GitHub, at the commit this page was made from: the board is tama.kicad_pcb and its schematic tama.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tama design in my own project?
Its repository states no licence, so its author keeps all rights: ask rough-rat before reusing the design.
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