2019-02-10, 03:59
Hello there,
this is my first project with Raspberry pi.
i want to make a Testing chamber for growing micro greens(small plants).
What this chamber does is following:
1- weigh the growing pods (pods picture is attached) - load-cell and HX711 (four of each of them)
2- control Humidity and temperature with DHT22 attached to relay board to turn on or off the heater and humidifier (one DHT22) and also turn off and on the exhaust fan.
3- Control light hours (turn on and of in specific time) with relay
4- control growing medium moisture with capacitive moisture sensor (CSMO v1.2) - sensor control the solenoid valve to water the pod with relay board whenever medium is got dry. since out pot signal is analog i use MCP3008 to convert it to digital
5- each pod has flow meter attached to its watering pipes to measure how much water is used
to be short i have the following sensors that i want to control with RPI zero W:
4 * Load cells (YZC-133) with 4 HX711 for each one
4 * Solenoid valves
4 * Capacitive moisture sensors (CSMO v1.2) with 1 MCP3008
4 * Flow meters
1 * Humidifier
1 * DHT22
1 * Exhaust Fan
1 * Heater
1 * Light
2 * 4 Channel relay board
(schematic wiring is attached )
So here are my questions:
1 - could R PI zero W handle the processing load of controlling these sensors?
2- is it possible to do this project with ESP32 and MCP23017 (for GPIO port expansion) ? could ESP32 handle these sensor's processing load?
i appreciate any suggestion for doing this project.
schematic wiring:
http://uupload.ir/files/ke1t_schematic_wiring.jpg
Growing pod:
http://s8.picofile.com/file/8351761018/ ... Pod_01.jpg
http://s9.picofile.com/file/8351761050/ ... Pod_02.jpg
Thank you all in advance.
this is my first project with Raspberry pi.
i want to make a Testing chamber for growing micro greens(small plants).
What this chamber does is following:
1- weigh the growing pods (pods picture is attached) - load-cell and HX711 (four of each of them)
2- control Humidity and temperature with DHT22 attached to relay board to turn on or off the heater and humidifier (one DHT22) and also turn off and on the exhaust fan.
3- Control light hours (turn on and of in specific time) with relay
4- control growing medium moisture with capacitive moisture sensor (CSMO v1.2) - sensor control the solenoid valve to water the pod with relay board whenever medium is got dry. since out pot signal is analog i use MCP3008 to convert it to digital
5- each pod has flow meter attached to its watering pipes to measure how much water is used
to be short i have the following sensors that i want to control with RPI zero W:
4 * Load cells (YZC-133) with 4 HX711 for each one
4 * Solenoid valves
4 * Capacitive moisture sensors (CSMO v1.2) with 1 MCP3008
4 * Flow meters
1 * Humidifier
1 * DHT22
1 * Exhaust Fan
1 * Heater
1 * Light
2 * 4 Channel relay board
(schematic wiring is attached )
So here are my questions:
1 - could R PI zero W handle the processing load of controlling these sensors?
2- is it possible to do this project with ESP32 and MCP23017 (for GPIO port expansion) ? could ESP32 handle these sensor's processing load?
i appreciate any suggestion for doing this project.
schematic wiring:
http://uupload.ir/files/ke1t_schematic_wiring.jpg
Growing pod:
http://s8.picofile.com/file/8351761018/ ... Pod_01.jpg
http://s9.picofile.com/file/8351761050/ ... Pod_02.jpg
Thank you all in advance.
