User contributions for Uwe
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- 17:56, 5 January 2023 diff hist +253 Relay Board Control →Monitoring and repair of relay board states
- 09:21, 5 January 2023 diff hist 0 Relay Board Control →Avoiding conflicting access to relay board
- 09:11, 5 January 2023 diff hist +403 Relay Board Control →Low level communication via serial port
- 09:07, 5 January 2023 diff hist +561 Relay Board Control →Low level communication via serial port
- 09:00, 5 January 2023 diff hist +624 Relay Board Control →Low level communication via serial port
- 08:51, 5 January 2023 diff hist +366 Relay Board Control →Low level communication via serial port
- 08:46, 5 January 2023 diff hist +370 Relay Board Control →Low level communication via serial port
- 08:35, 5 January 2023 diff hist +537 Relay Board Control →Low level communication via serial port
- 08:49, 4 January 2023 diff hist +778 Relay Board Control →Watchdog for reading/writing to serial port
- 08:38, 4 January 2023 diff hist +280 Relay Board Control →Watchdog for reading/writing to serial port
- 14:27, 30 December 2022 diff hist +676 Relay Board Control →HW functionality test
- 14:01, 30 December 2022 diff hist −26 Relay Board Control →HW functionality test before executing commands
- 09:05, 30 December 2022 diff hist +1 Relay Board Control →Avoiding conflicting access to relay board
- 09:04, 30 December 2022 diff hist +1 Relay Board Control →Avoiding conflicting access to relay board
- 09:04, 30 December 2022 diff hist +1 Relay Board Control →Avoiding conflicting access to relay board
- 09:04, 30 December 2022 diff hist +1 Relay Board Control →Avoiding conflicting access to relay board
- 09:03, 30 December 2022 diff hist +1,465 Relay Board Control →Avoiding conflicting access to relay board
- 10:05, 25 December 2022 diff hist +619 Relay Board Control
- 09:50, 25 December 2022 diff hist +2 Relay Board Control
- 09:50, 25 December 2022 diff hist +900 N Relay Board Control Created page with "The following components utilise the relay board: * Refill Control: refilling of fresh water depending on water level * Feeder Control: stopping flow pumps, skimmer and actuating the feeder * Water Exchange Control: actuating the external pump for water exchange * Balling Control: actuating the pumps for mineral dosing There are two requirements, which ask for a more sophisticated control of the relay board: * The dosing of minerals needs to be as precise as possible. *..."
- 09:36, 25 December 2022 diff hist +69 Control application
- 12:12, 6 November 2022 diff hist +1 Calculation of refill tank content
- 12:12, 6 November 2022 diff hist +1 Calculation of refill tank content
- 12:11, 6 November 2022 diff hist +230 Calculation of refill tank content
- 12:07, 6 November 2022 diff hist +72 N File:RefillTankLevelFiltered.png current
- 12:02, 30 October 2022 diff hist −31 Automatic start by using systemd
- 22:23, 4 October 2022 diff hist −13 Automatic start by using systemd
- 22:22, 4 October 2022 diff hist +348 Automatic start by using systemd
- 22:12, 4 October 2022 diff hist +1 Automatic start by using systemd
- 22:12, 4 October 2022 diff hist +280 Automatic start by using systemd
- 22:10, 4 October 2022 diff hist +6 Automatic start by using systemd
- 22:09, 4 October 2022 diff hist +1 Automatic start by using systemd
- 22:09, 4 October 2022 diff hist +306 N Automatic start by using systemd Created page with "The content of systemd unit file /lib/systemd/system/aquarium-ctrl.service as following: <code> [Unit] Description=Aquarium Control Application After=multi-user.target [Service] Type=forking ExecStart=bash /usr/local/src/aquarium-ctrl/aquarium-ctrl-startup.sh [Install] WantedBy=multi-user.target </code>"
- 22:05, 4 October 2022 diff hist +2 Control application
- 22:03, 4 October 2022 diff hist +56 Control application
- 22:01, 4 October 2022 diff hist +11 Control application
- 22:01, 4 October 2022 diff hist +85 Aquarium-Control
- 21:59, 4 October 2022 diff hist +11 Aquarium-Control
- 09:59, 5 June 2022 diff hist +17 Driver for the DHT22 sensor current
- 09:58, 5 June 2022 diff hist +527 N Driver for the DHT22 sensor Created page with "Aquarium control contains its own driver for the DHT22 sensor. The driver implements an interrupt call via the pigpio library. This interrupt code only stores the level changes of the related GPIO. The transmission from the sensor is being checked and the ambient temperature and humidity are being calculated. Aquarium control implements a thread which acquires a value every minute. Interrupt code, transmission check and value calculation as well as the thread are imp..."
- 09:52, 5 June 2022 diff hist +4 Data acquisition of ambient temperature and humidity current
- 09:44, 5 June 2022 diff hist +218 N Data acquisition of ambient temperature and humidity Created page with "Aquarium control records the ambient temperature and ambient humidity using a DHT22 sensor. The temperature and humidity are stored in the SQL database. The control application has its own driver for the DHT22 sensor."
- 09:42, 5 June 2022 diff hist +4 Control application
- 11:57, 10 April 2022 diff hist +149 Relay boards
- 11:56, 10 April 2022 diff hist +94 N File:RelayBoardsMountedInControlCabinet.jpg current
- 11:52, 10 April 2022 diff hist +593 N Relay boards Created page with "The control system uses two relay boards. The supplier of the relay boards is Conrad electronics: * [https://www.conrad.at/de/p/conrad-components-197720-relaiskarte-baustein-12-v-dc-24-v-dc-197720.html Low-voltage relay board 197720] * [https://www.conrad.at/de/p/conrad-components-197730-relaiskarte-baustein-12-v-dc-197730.html High-voltage relay board] The Raspberry Pi communicates with the relay board via USB, therefore an additional module needs to be assembled onto..."
- 11:43, 10 April 2022 diff hist +4 Control cabinet
- 19:10, 3 April 2022 diff hist +40 Experimental monitoring of refill tank current
- 19:09, 3 April 2022 diff hist +88 N File:WebpageRefillMonitor.png current
- 18:30, 3 April 2022 diff hist +317 N Experimental monitoring of refill tank Created page with "The refill tank which contains purified fresh water needs to be refilled as well. Purified fresh water can be produced by a filter unit utilising reverse osmosis. Output of such a filter unit is low. Hence, refilling the refill tank may take hours when using a direct connection between filter unit and refill tank."
