Water meter 2 layer
About the Water meter 2 layer PCB
Water meter 2 layer is an open source ESP32 PCB design by YDrip, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 106.2 × 41 mm, with 40 components from 36 distinct parts.
Its main chip is the RT9080-33GJ5, from the ESP32 family. Other key parts include the ESP32-S3-WROOM-1U-N16, ALT021-10E, SLG47004V and IN-PI22TAT5R5G5B. By type, the board carries 15 capacitors, 10 resistors, 5 ICs, 3 connectors, 2 transistors and 2 switches.
From the project
YDrip hardware files
This repository contains the open-source hardware design files for a water meter. The design was created using KiCad 6.
- High-precision water metering - Low power consumption - Compact and cost-effective design - Compatible with standard water metering infrastructure - Customizable digital logic
This project is licensed under the CERN Open Hardware Licence Version 2 - Weakly Reciprocal. Please see the LICENSE.txt file for more details.
Main components on the Water meter 2 layer
Water meter 2 layer bill of materials (BOM)
40 components, 36 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RT9080-33GJ5 ESP32-S2-WROVER | ESP32-S2-WROVER | U1 |
| 1 | ESP32-S3-WROOM-1U-N16 LIS3MDLTR | LIS3MDLTR | U2 |
| 1 | ALT021-10E TLV1117LV33DCYR | SOT-223-3_TabPin2 | U3 |
| 1 | SLG47004V SGP30-2.5K | SGP30-2.5K | U4 |
| 1 | IN-PI22TAT5R5G5B BME280 | Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering | U6 |
| 2 | BSS84LT1G MMBT3904 | SOT-23 | Q1, Q2 |
| 1 | ABS07-32.768KHZ-T 32.768kHz (ESR < 70 kΩ) | Crystal_SMD_G8-2Pin_3.2x1.5mm_HandSoldering | Y1 |
| 1 | PH1-06-UA Conn_01x06 | PinSocket_1x06_P2.54mm_Vertical_SMD_Pin1Left | J3 |
| 1 | 105133-0001 USB_B_Micro | USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J4 |
| 1 | PH1-04-UA Barrel_Jack_Switch | BarrelJack_CUI_PJ-102AH_Horizontal | J5 |
| 1 | MF-NSMF110 | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 2 | TL3342F160QG_TR | TL3342F160QG_TR | SW1, SW2 |
| 1 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 2 | CL21C220JBANNNC 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | CL21B105KAFNNNE 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C9 |
| 1 | CL21A226MQQNNNE 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4 |
| 1 | CL21A106KPFNNNG 10uF/25V(20%) | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5 |
| 1 | 08053C104KAT4A 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | CL21C220JBANNNC 0.1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7 |
| 1 | CL21A106KPFNNNG 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
Show 16 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CL21B105KAFNNNE 1uF(X5R) | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10 |
| 1 | CL21C101JBANNND 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11 |
| 1 | CL21C101JBANNND 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 1 | CL21C220JBANNNC 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C13 |
| 1 | 08053C104KAT4A 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C14 |
| 1 | 08053C104KAT4A 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C15 |
| 1 | CRCW080510K0FKEAC 10K(1%) | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | RC0805FR-070RL 10K(1%) | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | RC0805FR-070RL 0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 10K 0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | CRCW08054R70FKEA 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 5.1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | CRCW08054R70FKEA 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | CRCW0805100KJNEAC 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8 |
| 1 | 10K 4.7 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9 |
| 1 | CRCW08051M00FKEA 10k(1%) | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10 |
Water meter 2 layer design files
The KiCad project lives in the YDrip/ydrip-pcb repository on GitHub; these links point at the commit this page was built from.
Water meter 2 layer: common questions
What microcontroller does the Water meter 2 layer use?
The Water meter 2 layer is built around the RT9080-33GJ5, from the ESP32 family.
How big is the Water meter 2 layer PCB?
The Water meter 2 layer measures 106.2 × 41 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Water meter 2 layer?
40 components, from 36 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Water meter 2 layer design files?
From the YDrip/ydrip-pcb repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Water meter 2 layer design in my own project?
Yes, under the terms of its CERN-OHL-W-2.0 license, which YDrip chose for the repository.
Can I test firmware for the Water meter 2 layer without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
More boards in ydrip-pcb
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k