Remote Water Level Meter
For a precious commodity

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Extra info / Update
* Wireless connection
* Low cost
* Only common parts needed
Component list
160044-71: Ultrasonic distance sensor HY-SRF05
080213-71: USB/TTL serial cable
SKU17001: Arduino Mini
Books on Arduino: www.elektor.com/books/arduino-books/
[show a few book images]
Component List — Transmitter
K1 = 2-way PCB screw terminal block, 0.2" pitch
K2 = 3-pin pinheader, 0.1" pitch
MOD1 = Arduino (Pro) Mini or Uno
MOD2 = HC-SR04 ultrasonic transceiver module (or similar, HY-SRF05 can be used too)
MOD3 = 433MHz transmitter module (see text)
Jumper for K2
433MHz antenna (spiral / whip / 173mm stiff wire)
Component List — Receiver
R1 = 47Ohm
P1 = 10kOhm trimpot
K1 = 2-way PCB screw terminal block, 0.2" pitch
LCD1 = 2×16 characters alphanumeric LCD
MOD1 = Arduino (Pro) Mini or Uno
MOD2 = 433MHz receiver module (see text)
433MHz antenna (spiral / whip / 173mm stiff wire)
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