4 layers188.5 × 82 mm
Digital waters
atop8918/DigitalWaters_WD_prototype
Simplified Schematic for prototype release
118 partsMIT
2 layers
Digital waters
atop8918/DigitalWaters_WDDigital Waters Water Monitoring Device hardware
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 71
- Pads
- 160
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 May 2025
- Updated
- 7 Jun 2025
Overview
Digital waters is an open-source printed circuit board by atop8918, from the atop8918/DigitalWaters_WD repository on GitHub. It is a 2-layer board with 20 parts on 71 nets.
It is built around the DHT20, TVS0500DRV and TPS22929DDBV, with the M24C02-WMN6 among its other parts. Its parts include 16 ICs and 3 connectors.
Main components
4
DHT20
SIP-4-40℃~+80℃ 0%RH~100%RH 2.2V~5.5V 980uA Factory calibration I2C ±0.5℃ ±3%RH SIP-4 Temperature and Humidity Sensor ROHSAosong ElecTemperature And Humidity Sensor
TVS0500DRV
WSON-6(2x2)-40℃~+125℃ 155pF 400W@8/20us 43A@8/20us 5V 7.9V 70pA 9.2V IEC 61000-4-2、IEC 61000-4-5 TVS Unidirectional WSON-6(2x2) ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD And Surge Protection (TVS/ESD)
TPS22929DDBV
SOT-23-6-40℃~+85℃ 1 1.4V~5.5V 1.8A 115mΩ Active High Load Switch 输出放电功能、软启动、欠压锁定、反向电压保护、反向电流阻断 SOT-23-6 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
M24C02-WMN6
SO-8SO-8 EEPROM ROHSSTMicroelectronicsEEPROM
README
README.mdDigitalWaters_WD
Digital Waters Water Monitoring Device hardware
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | TVS0500DRV | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U9, U15, U34, U35 |
| 3 | OPA2397DGKR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4, U5, U11 |
| 2 | Conn_01x20_Socket | Connector_PinHeader_1.27mm:PinHeader_1x20_P1.27mm_Vertical_SMD_Pin1Left | J11, J16 |
| 2 | REF3040 | Package_TO_SOT_SMD:SOT-23 | U8, U10 |
| 2 | TLV2387DR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U30 |
| 2 | TPS22929D | Package_TO_SOT_SMD:SOT-23-6 | U3, U7 |
| 1 | DHT20 | Connector_PinHeader_1.27mm:PinHeader_1x04_P1.27mm_Vertical | U17 |
| 1 | EZO Carrier Board | Connector_PinHeader_1.27mm:PinHeader_1x05_P1.27mm_Horizontal | J18 |
| 1 | M24C02-WMN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | REF3025 | Package_TO_SOT_SMD:SOT-23 | U12 |
| 1 | R_Pack03_SIP | Resistor_THT:R_Array_SIP6 | RN1 |
Similar boards
- 2 layers86 × 78 mm
FlameSensorSender
Rizz071/SmokeAlert
Pull request'ы и предложения приветствуются! По вопросам сотрудничества — обращайтесь в Issues или откройте дискуссию.
46 parts - 2 layers
- 2 layers101.6 × 101.6 mm
Boot camp pcb
eshazen/reference_designs
Example projects for educational purposes - no warranty!
35 partsCC0-1.0 - 2 layers68.6 × 53.3 mm
Sensor module
iconner22/env_monitor_nodes
Adruino code and schematics for ad-hoc wireless sensor networks used for environmental monitoring. Project developed for senior year computer engineering capstone project.
9 parts - 2 layers40 × 97.9 mm
- 2 layers100 × 52.5 mm
- 4 layers109.5 × 79 mm
AirQuality
Tsquash/AirQualityMonitor
AQM is an ESP32-C6-based, Matter compatible, indoor air-quality monitor. It measures carbon dioxide, temperature, humidity, VOC, and NOx, displays the latest readings on an e-paper display, and publishes its…
47 partsApache-2.0
Questions
What parts does the Digital waters use?
20 parts, built around the DHT20, TVS0500DRV, TPS22929DDBV and M24C02-WMN6. 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 Digital waters KiCad files?
From the atop8918/DigitalWaters_WD repository on GitHub, at the commit this page was made from: the board is digital_waters.kicad_pcb and its schematic digital_sensor_4.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Digital waters design in my own project?
Its repository states no licence, so its author keeps all rights: ask atop8918 before reusing the design.