
Controller
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards

Monitor water flow and filter efficiency
Devkitc prototype is an open-source printed circuit board by brianinnes, from the brianinnes/waterMonitor repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 99.1 × 69.9 mm with 11 parts on 37 nets, routed with 37 tracks and 0 vias.
Its parts include 5 ICs, 1 resistor and 1 diode. It belongs with the home automation and IoT boards and the ESP32 boards of this library.
ESP32 project to monitor water quality.
This project uses an ESP32 DevKitC device along with a flow meter and 2 TDS meter components to measure water usage and monitor efficiency of a water filter.
Documentation can be found here : https://brianinnes.github.io/waterMonitor/
| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 1N418 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | 4.7k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1 |
| 1 | ESP-DEVKITC | custom:DEVKITC | U2 |
| 1 | FLOW_METER | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | U5 |
| 1 | POST_FILTER_TDS | custom:DFRobot_Gravity_TDS_Sensor | U4 |
| 1 | PRE_FILTER_TDS | custom:DFRobot_Gravity_TDS_Sensor | U3 |
| 1 | TEMP_SENSE | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | U1 |
The 7 most common of 11 parts.
It measures 99.1 × 69.9 mm and has 2 copper layers, 1.6 mm thick.
11 parts. 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.
From the brianinnes/waterMonitor repository on GitHub, at the commit this page was made from: the board is pcb/devkitc_prototype/devkitc_prototype.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards


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