Thingiverse
Touch-Display with CO2-Sensor by BeneMerz
by Thingiverse
Last crawled date: 4 years, 6 months ago
I designed this as a small info screen for the desk. It can measure the CO2-level in the room.
Used Electronics:
NodeMCU-32, V1.2
Sensirion SCD-30
2.4'' UNO Module (TFT-Shield), 240x320, 8bit Bus, Touch
The display consists of 4 parts. Electronic parts can be inserted and fixed between these parts.
Known issue:
Round holes for fixing the parts are a little bit too small, but can be broadened with a drill
Soldering is not easy - you need to do this between putting the layers together! Use small wrapping wire for the data channels and bigger ones for the power supply.
You should use a good USB power supply. Otherwise the display will flicker.
Wiring:
SCD30 -> NodeMCU
VIN -> 5V
GND -> GND
SCL -> P22
SDA -> P21
2.4'' UNO Module -> NodeMCU
LCD_RST -> P26
LCD_CS -> P32
LCD_RS -> P33 + P14
LCD_WR -> P12
LCD_RD -> P13
GND -> GND
5V -> 5V
3V -> 3V
LCD_D2 -> P23
LCD_D3 -> P27
LCD_D4 -> P15
LCD_D5 -> P19
LCD_D6 -> P18
LCD_D7 -> P17
LCD_D0 -> P16
LCD_D1 -> P4
Software (only as reference, needs to adapted):
Pins for ILI9341-Driver needs to be defined in .h-File located in the library-folder. See User_Setup.h
Pins for Touch are shared with LCD_RS and LCD_CS. Thus switching between Touch and Display is required in the software.
In line 2 you can find the mysql command to create the table
Adapt the following in the .ino-file
Line 18, 19: Your Wifi credentials
Line 21 - 26: SQL-Server and credentials for storing and reading CO2-values
Line 28 - 30: SQL-Server with additional information to be shown (e. g. heating, ...)
Line 358: Here you need to adapt the SQL statement to get the data you want to display
Line 170 can be used to debug the touch screen. You see a small rectangle at the point of touch. Line 39 is used to map Touch to actual display.
It is not easy to adapt this project to your needs! You should be familiar with NodeMCU, programming, SQL etc.!
Used Electronics:
NodeMCU-32, V1.2
Sensirion SCD-30
2.4'' UNO Module (TFT-Shield), 240x320, 8bit Bus, Touch
The display consists of 4 parts. Electronic parts can be inserted and fixed between these parts.
Known issue:
Round holes for fixing the parts are a little bit too small, but can be broadened with a drill
Soldering is not easy - you need to do this between putting the layers together! Use small wrapping wire for the data channels and bigger ones for the power supply.
You should use a good USB power supply. Otherwise the display will flicker.
Wiring:
SCD30 -> NodeMCU
VIN -> 5V
GND -> GND
SCL -> P22
SDA -> P21
2.4'' UNO Module -> NodeMCU
LCD_RST -> P26
LCD_CS -> P32
LCD_RS -> P33 + P14
LCD_WR -> P12
LCD_RD -> P13
GND -> GND
5V -> 5V
3V -> 3V
LCD_D2 -> P23
LCD_D3 -> P27
LCD_D4 -> P15
LCD_D5 -> P19
LCD_D6 -> P18
LCD_D7 -> P17
LCD_D0 -> P16
LCD_D1 -> P4
Software (only as reference, needs to adapted):
Pins for ILI9341-Driver needs to be defined in .h-File located in the library-folder. See User_Setup.h
Pins for Touch are shared with LCD_RS and LCD_CS. Thus switching between Touch and Display is required in the software.
In line 2 you can find the mysql command to create the table
Adapt the following in the .ino-file
Line 18, 19: Your Wifi credentials
Line 21 - 26: SQL-Server and credentials for storing and reading CO2-values
Line 28 - 30: SQL-Server with additional information to be shown (e. g. heating, ...)
Line 358: Here you need to adapt the SQL statement to get the data you want to display
Line 170 can be used to debug the touch screen. You see a small rectangle at the point of touch. Line 39 is used to map Touch to actual display.
It is not easy to adapt this project to your needs! You should be familiar with NodeMCU, programming, SQL etc.!