Difference between revisions of "Tanklevel"
| Line 36: | Line 36: | ||
+-------------+ | +-------------+ | ||
Tank | Tank | ||
| + | |||
| + | See the following example: | ||
| + | |||
| + | [[File:Tanklevel_pump_assy.jpg|Pump assembly|177px]] | ||
| + | [[File:Tanklevel_tank_assy.jpg|Tank assembly|100px]] | ||
== Electrical setup == | == Electrical setup == | ||
| Line 43: | Line 48: | ||
with the selected ADC channel (have a look at the datasheet for power supply | with the selected ADC channel (have a look at the datasheet for power supply | ||
decoupling and output filtering). Select a optimal Vref for the ADC if | decoupling and output filtering). Select a optimal Vref for the ADC if | ||
| − | possible. | + | possible. Schematic could look like this: |
| + | |||
| + | [[File:Tanklevel_schem.png|Electrical setup]] | ||
Revision as of 15:32, 2 April 2012
| Tank level meter | |
|---|---|
| Status | Stable
|
| menuconfig | Applications->Tank level meter |
| Pinning | yes |
| Ecmd | yes |
| Depends on | ECMD, Clock, ADC, Cron (optional) |
| Code | https://github.com/ethersex/ethersex/tree/master/services/tanklevel |
Tanklevel provides an application for measurement of tank levels by hydrostatic pressure.
Internals
You need an aquarium air pump, some kind of pipe/tube, a Freescale MPX5050DP pressure sensor and an relay for the pump. Parameters are configurable by ECMD and stored in EEPROM.
Mechanical setup
+-------+
|Sensor |
+---+---+
| +--------+
+---------------+-+ Pump |
| +--------+
+------+------+
| | |
| | |
|------|------|
| | |
| | |
| | |
+-------------+
Tank
See the following example:
Electrical setup
Electrical Setup is quite simple. Connect the TANK_PUMP port with an relay (usually via an Transistor as current amp) and the output of the Sensor with the selected ADC channel (have a look at the datasheet for power supply decoupling and output filtering). Select a optimal Vref for the ADC if possible. Schematic could look like this:
