2 layers64.8 × 38.1 mm
2 layers27.5 × 28.4 mm
Tiny power meter
ezcGman/tiny-power-meter5A very tiny 3-phase power meter to measure your homes power consumption and report to Home Assistant!
- Size
- 27.5 × 28.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 27
- Pads
- 84
- Tracks, vias
- 54, 4
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 27 Sep 2022
- Updated
- 28 Sep 2022
Overview
Tiny power meter is an open-source printed circuit board by ezcGman, from the ezcGman/tiny-power-meter repository on GitHub. It is a 2-layer board of 27.5 × 28.4 mm with 19 parts on 27 nets, routed with 54 tracks and 4 vias.
It is built around the ESP-07, AMS1117-3.3 and CD4051BE. Its parts include 8 resistors, 3 capacitors, 3 ICs and 2 connectors. It belongs with the sensors and measurement boards and the ESP8266 boards of this library.
Main components
3
ESP-07
SMD-16P,21.2x16mm-40℃~+125℃ -98dBm 19.5dBm 2.4GHz 3.3V 802.11b/g/n ESP8266 Chip On-board PCB Antenna Over-the-air (OTA) update UART、I2C、HSPI、I2S SMD-16P,21.2x16mm WiFi Modules ROHSAi-ThinkerWiFi Modules
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CD4051BE
PDIP-16-55℃~+125℃ 125Ω 20MHz 3V~20V 450ns 8 8:1 PDIP-16 Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
README
README.md
Tiny 3-phase power meter
A very tiny ESP8266 based PCB to monitor your apartments / homes power consumption using CT clamps and report the reading to Home Assistant using ESPHome!
Credits
As for all my PCBs: Huge thanks to Quindor from QuinLED.info and also the folks from #pcb-design-talk on his Discord server! Would not have been able to do anything without these people!!
KiCad dependencies
It might happen that KiCad is missing my custom footprints. You can find and download them here and then add them to KiCad: https://github.com/ezcGman/andys-footprints
Key features
TBD
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10kΩ | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R7, R8 |
| 2 | 10 | Capacitor_SMD:C_0805_2012Metric | C1, C4 |
| 2 | M2 | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2 |
| 1 | 100kΩ | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 220kΩ | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | 22µF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | CD4051B | Package_DIP:DIP-16_W7.62mm | U3 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Horizontal | J2 |
| 1 | ESP-07 | Andys-Footprints:ESP-12-Socket-Cutout | U2 |
| 1 | LOGO | Andys-Footprints:Yoshi-Egg-Small | G*** |
| 1 | Screw_Terminal_01x02 | Andys-Footprints:TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal-removed-extra-holes | J1 |
Questions
How big is the Tiny power meter PCB?
It measures 27.5 × 28.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Tiny power meter use?
19 parts, built around the ESP-07, AMS1117-3.3 and CD4051BE. 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 Tiny power meter KiCad files?
From the ezcGman/tiny-power-meter repository on GitHub, at the commit this page was made from: the board is pcb/Tiny-Power-Meter.kicad_pcb and its schematic pcb/Tiny-Power-Meter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tiny power meter design in my own project?
Its repository states no licence, so its author keeps all rights: ask ezcGman before reusing the design.
Similar boards
- 2 layers99.6 × 69.8 mm
- 2 layers75.3 × 86 mm
RS485
Solderingironspb/ModbusRTU_Master_MQTT_Gateway
Данное устройство выступает мастером сети ModbusRTU. Обменивается данными с подчиненными устройствами (до 247 устройств на линии RS485).
67 parts1 - 2 layers60.2 × 39.9 mm
NodoVibraciones
Mario-dango/VibraNet
Proyecto de investigación sobre una red de nodos receptores de vibraciones mediante wifi
33 partsMIT - 2 layers72 × 52 mm
WaterLevelDetectorBatteryOp
morynicz/WaterLevelDetector
PCB for detection of remaining rainwater for garden watering.
16 partsGPL-3.0 - 2 layers98 × 68 mm
- 2 layers99.5 × 99.5 mm
Power tracking heaterP
kwiecinski/BMS-and-offgrid-photovoltaic-management-system
Project contains BMS for lead-acid batteries and ESP-based board used to pull information from EASUN offgrid inverter, energy meters and sensors.
79 parts3MIT - 4 layers90 × 43 mm
Temperature Thing With Thermocouple 3V3
spacebiz24/Thermal-Profiling
A Thermal Profiling Platform built with ATMega328P and MAX31856
89 parts3MPL-2.0