2 layers29.3 × 68.9 mm
2 layers42.8 × 86.2 mm
PowerTiger
codetiger/PowerTiger19Home power monitoring system - Monitoring energy consumption with better granularity
- Size
- 42.8 × 86.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 72
- Pads
- 235
- Tracks, vias
- 353, 37
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 1 Aug 2024
- Updated
- 24 Aug 2024
Overview
PowerTiger is an open-source printed circuit board by codetiger, from the codetiger/PowerTiger repository on GitHub, published under the MIT licence. It is a 2-layer board of 42.8 × 86.2 mm with 55 parts on 72 nets, routed with 353 tracks and 37 vias.
It is built around the ADS1115IDGSR and PCA9546APWRE4. Its parts include 17 connectors, 14 resistors, 9 capacitors and 9 ICs.
Main components
2
ADS1115IDGSR
VSSOP-10-40℃~+125℃ 16 1LSB 2 2.048V 2V~5.5V 500nA 860Hz 8Hz、16Hz、32Hz、64Hz、128Hz、250Hz、475Hz、860Hz Built-in Built-in I2C Sigma-Delta Support Yes VSSOP-10 Analog to Digital Converters (ADC) ROHSTexas InstrumentsAnalog To Digital Converters (ADC)
PCA9546APWRE4
TSSOP-16Power-up/reset configuration TSSOP-16 Interface - Specialized ROHSTexas InstrumentsInterface - Specialized
README
README.mdPowerTiger
Overview
This project is an open-source energy monitoring solution designed to track and measure power consumption in a household. The design is centered around the Raspberry Pi Pico W, interfaced with Current Transformer (CT) sensors via a custom PCB. The project is developed using KiCad for PCB design and is part of an open-source hardware (OSH) initiative.
Features
- Real-time power monitoring: Accurately measure and track power usage in real-time using CT sensors.
- Wireless communication: The RPi Pico W provides wireless connectivity, enabling easy integration with IoT platforms.
- Scalable design: Supports multiple CT sensors to monitor different circuits or devices.
- Open-source hardware and software: The design files and source code are freely available for customization and improvement as part of the OSH initiative.
Project Components
- Raspberry Pi Pico W: The microcontroller at the heart of the project, providing processing power and wireless connectivity.
- Custom PCB: Designed in KiCad, this PCB interfaces with the CT sensors for power measurement of various terminals.
- CT Sensors: Used to measure the current flowing through the electrical wires, providing the data needed for power calculation.
- Software: The firmware is written in CircuitPython, running on the RPi Pico W.
| Components | Count | |
|---|---|---|
| 1 | SCT-013-030 | 5 |
| 2 | SCT-013-015 | 5 |
| 3 | SCT-013-005 | 6 |
The json config support configuring 16 CT sensors in any combination as required.
Grafana Dashboard
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | SCT-013 | easyeda2kicad:AUDIO-TH_PJ-3200 | CN1, CN2, CN3, CN4, CN5, CN6, CN7, CN8, CN9, CN10, CN11, CN12, CN13, CN14, CN15, CN16 |
| 14 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8, R11, R12, R15, R16, R19, R20 |
| 8 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C8, C9, C10, C11 |
| 8 | ADS1115IDGSR | easyeda2kicad:MSOP-10_L3.0-W3.0-P0.50-LS5.0-BL | U2, U3, U4, U5, U8, U9, U10, U11 |
| 3 | MountingHole | MountingHole:MountingHole_2.5mm | H1, H2, H3 |
| 3 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | A0, A1, A2 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | PCA9546APWR | easyeda2kicad:TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL | U1 |
Questions
How big is the PowerTiger PCB?
It measures 42.8 × 86.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PowerTiger use?
55 parts, built around the ADS1115IDGSR and PCA9546APWRE4. 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 PowerTiger KiCad files?
From the codetiger/PowerTiger repository on GitHub, at the commit this page was made from: the board is Hardware/PowerTiger/PowerTiger.kicad_pcb and its schematic Hardware/PowerTiger/PowerTiger.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PowerTiger 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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