2 layers115.6 × 85.1 mm
CapLevelSensorESP
fflori4n/ESP_tankLevelSensor
Water reservoar level monitoring using capacitive sensor, ESP32 with numeric and web displays
50 partsGPL-2.0
2 layers69.9 × 26 mm
CapacitiveSensor
fflori4n/ESP_tankLevelSensorWater reservoar level monitoring using capacitive sensor, ESP32 with numeric and web displays
- Size
- 69.9 × 26 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 6
- Pads
- 32
- Tracks, vias
- 72, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 9 Aug 2022
- Updated
- 10 Jun 2023
Overview
CapacitiveSensor is an open-source printed circuit board by fflori4n, from the fflori4n/ESP_tankLevelSensor repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 69.9 × 26 mm with 9 parts on 6 nets, routed with 72 tracks and 0 vias.
It is built around the NE555. Its parts include 3 capacitors, 3 connectors, 2 resistors and 1 IC. It belongs with the sensors and measurement boards of this library.
Main components
1README
README.mdESP_tankLevelSensor
ESP32 measuring water level in a reservoar, using an external LM555 oscillator and a capacitive probe.
Measurements are displayed on MAX7219 driven 7seg. displays and the uController hosts it's on webserver that displays the tank status and stats. Board has a linear regulator to drop the 12V DC from the truck's battery to 5V for the ESP and the sensor, two relays that can switch 12V DC external loads ( meant for signal lights ), and can drive WS2812B LED strip to indicate level in the tank.
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | R | myComponents:resistor0.25,9mm | R1, R2 |
| 1 | 10n | myComponents:Capker_L4.6mm_W2.0mm_P2.50mm | C2 |
| 1 | 47u16V | Capacitor_THT:CP_Radial_D7.5mm_P2.50mm | C3 |
| 1 | Conn_01x01_Female | myComponents:4mmcableSteainRelief | J3 |
| 1 | Conn_01x02_Male | myComponents:CopperPad_2x0.75 | J2 |
| 1 | Conn_01x04_Male | myComponents:CopperPad_4x4_withZipTie | J1 |
| 1 | Cx | myComponents:Capker_L4.6mm_W2.0mm_P2.50mm | C1 |
| 1 | NE555 | myComponents:DIP-8_W7.62mm_Large | U1 |
Questions
How big is the CapacitiveSensor PCB?
It measures 69.9 × 26 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CapacitiveSensor use?
9 parts, built around the NE555. 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 CapacitiveSensor KiCad files?
From the fflori4n/ESP_tankLevelSensor repository on GitHub, at the commit this page was made from: the board is electronics/CapacitiveSensor/CapacitiveSensor.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CapacitiveSensor design in my own project?
Its repository publishes it under the GPL-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).
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