Non Contact Wireless Liquid Level Gauge

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 Receiver Frontend: The receiver front end was the easier one to design, but most proved tjmmo be an elephant while coding. The front end consists of
(a) HD44780 16×2 Compatible LCD Display
(b) MSP430 MCU. MSP430G2553 was used
(c) Rotary Encoder for changing data and screen items.
(d) RF Receiver

Eagle Schematic of Receiver Frontend

Eagle Board Layout of Receiver Frontend

Final PCB of Receiver Frontend – Top Side

Final PCB of Receiver Frontend – Bottom Side

Sensor Frontend 3D render

Water Controller – Receiver 3D render


Here is the photograph of the assembled frontends

Assembled Receiver and Transmitter Frontends


DownloadEagle Schematics and Board Layout
Download Source Code

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7 Responses to Non Contact Wireless Liquid Level Gauge

  1. Dilip says:

    Hi can u give me an idea for how to manage current cuts in your home..can u suggest how to build a cheap generator or inverter to supply current for home?

  2. Wayne Byal says:

    I am having a hard time finding a good link to your liquid level gauge project with schematics, board layout, parts list and code could you please provide this thanks wayne.

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  4. Olá estou procurando um esquema de circuito eletrônico para nível de caixa d’água, que tenha as seguintes medidas, 25%, 50%, 75%, 100%, através de sensores por fios e que tenha visor LCD para indicação. Também quero outo esquema que mim indique 50%, 75%, 100%, através de sensores com fios e tenha visor LCD, não sei se uma placa só serve para os dois casos. se você tiver algum me envie por favor.

    José Elaesso da Silva.

  5. Arky says:

    Hi interest in a unit like this can you contact me at my email

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