Changes in fc877df: 1108

				Board-dat/MPC/MPC1108-dat/2024-07-08-18-28-25.png
			
          Binary files a/Board-dat/MPC/MPC1108-dat/2024-07-08-18-28-25.png and /dev/null differ

				Board-dat/MPC/MPC1108-dat/2025-08-07-19-07-16.png
			
          Binary files /dev/null and b/Board-dat/MPC/MPC1108-dat/2025-08-07-19-07-16.png differ

				Board-dat/MPC/MPC1108-dat/MPC1108-dat.md
			
          @@ -4,7 +4,12 @@

           https://www.electrodragon.com/product/smart-fan-cooling-control-board-for-raspberry-pi/

          -![](2024-07-08-18-28-25.png)

          +

          +![](2025-08-07-19-07-16.png)

          +

          +- left-top RED SPDT witch == ON/OFF 12V power IN 

          +- right-bottom RED SPDT switch == fan manual ON/OFF 

          +

           ![](2025-08-07-18-53-33.png)

          @@ -35,10 +40,10 @@ https://www.electrodragon.com/product/smart-fan-cooling-control-board-for-raspbe

          -### Temperature sensor 

          -

          -- [[LM75-dat]]

          +## demo code 

          +- Temperature sensor == [[LM75-dat]]

          +- GPIO12 code to run == [[RPI-python-dat]]

           ## Note 

          @@ -51,7 +56,7 @@ Note when use this board and external 12V power supply to DC jack, you should NO

           ## ref 

          -- [[RPI-SDK-dat]] - [[RPI-dat]]

          +- [[RPI-SDK-dat]] - [[RPI-dat]] - [[RPI-python-dat]]

           - [[power-protection-dat]] - [[DFK-dat]]

				Chip-dat/TI-dat/TI-sensor-dat/LM75-dat/LM75-dat.md
			
          @@ -36,6 +36,14 @@ https://github.com/Edragon/RPI

           - [[py-LM75-dat.py]]

          +read out 

          +

          +    (test) root@raspberrypi:/home/pi# python lm75.py 

          +    Temperature: 34.50 °C

          +    Temperature: 34.50 °C

          +    Temperature: 34.50 °C

          +    Temperature: 34.50 °C

          +

           ## ref

				Chip-dat/TI-dat/TI-sensor-dat/LM75-dat/py-LM75-dat.py
			
          @@ -1 +1,23 @@

          +import smbus

          +import time

          +

          +# LM75 default I2C address (can vary, check your hardware)

          +LM75_ADDRESS = 0x48

          +LM75_TEMP_REGISTER = 0x00

          +

          +def read_lm75_temp(bus_num=1, address=LM75_ADDRESS):

          +    bus = smbus.SMBus(bus_num)

          +    # Read 2 bytes from temperature register

          +    data = bus.read_word_data(address, LM75_TEMP_REGISTER)

          +    # LM75 returns data in a swapped byte order

          +    temp_raw = ((data << 8) & 0xFF00) + (data >> 8)

          +    # Only the first 9 bits are temperature, shift to get value

          +    temp_c = (temp_raw >> 7) * 0.5

          +    return temp_c

          +

          +if __name__ == "__main__":

          +    while True:

          +        temp = read_lm75_temp()

          +        print(f"Temperature: {temp:.2f} °C")

          +        time.sleep(1)

          \ No newline at end of file

				SDK-dat/python-dat/RPI-python-dat/RPI-python-dat.md
			
          @@ -3,19 +3,14 @@

           - [[RPI-SDK-dat]] - [[RPI-HDK-dat]] 

          +- [[python-env-dat]]

          +

           apt-get install pip 

               Note, selecting 'python3-pip' instead of 'pip'

           - [[rpi-python-gpio-demo-1.py]]

          -## setup env

          -

          -    python3 -m venv .venv

          -    source .venv/bin/activate

          -

          -    pip install RPi.GPIO

          -    pip install SN74HC165

           ## rpi library 

          @@ -32,6 +27,10 @@ apt-get install pip

           build-in library: 

           - time, threading, 

          +install 

          +

          +    pip install smbus, RPi

          +

           ### error 

           - ~~SN74HC165 ?? ~~

          @@ -41,9 +40,17 @@ build-in library:

           - [[74HC595-dat]] - [[74HC165-dat]]

          +## demo code 

          +

          +- [[MPC1108-dat]] == IO12 run every 5 seconds == [[rpi-py-io12.py]]

          +

          +

          +

           ## ref 

           - [[rpi-dat]]

          -- [[python-dat]]

          \ No newline at end of file

          +- [[python-dat]]

          +

          +

				SDK-dat/python-dat/RPI-python-dat/rpi-py-io12.py
			
          @@ -0,0 +1,25 @@

          +import RPi.GPIO as GPIO

          +import time

          +

          +# Use BCM numbering for GPIO12 (physical pin 32)

          +led = 12  # GPIO12

          +switch = 31  # Update as needed for your switch GPIO

          +

          +GPIO.setmode(GPIO.BCM)

          +GPIO.setwarnings(False)

          +

          +GPIO.setup(led, GPIO.OUT)

          +GPIO.setup(switch, GPIO.IN)

          +

          +for i in range(10):

          +    GPIO.output(led, GPIO.HIGH)

          +    time.sleep(5)

          +    GPIO.output(led, GPIO.LOW)

          +    time.sleep(5)

          +    print('Switch status = ', GPIO.input(switch))

          +

          +GPIO.cleanup()

          +

          +

          +

          +

				SDK-dat/python-dat/python-env-dat/python-env-dat.md
			
          @@ -17,4 +17,14 @@

           # 4. Install required luma libraries

               pip install luma.oled

          -    

          \ No newline at end of file

          +    

          +

          +## and more 

          +

          +## setup env

          +

          +    python3 -m venv .venv

          +    source .venv/bin/activate

          +

          +    pip install RPi.GPIO

          +    pip install SN74HC165

...	...	@@ -4,7 +4,12 @@
4	4	https://www.electrodragon.com/product/smart-fan-cooling-control-board-for-raspberry-pi/
5	5
6	6
7		-![](2024-07-08-18-28-25.png)
	7	+
	8	+![](2025-08-07-19-07-16.png)
	9	+
	10	+- left-top RED SPDT witch == ON/OFF 12V power IN
	11	+- right-bottom RED SPDT switch == fan manual ON/OFF
	12	+
8	13
9	14
10	15	![](2025-08-07-18-53-33.png)
...	...	@@ -35,10 +40,10 @@ https://www.electrodragon.com/product/smart-fan-cooling-control-board-for-raspbe
35	40
36	41
37	42
38		-### Temperature sensor
39		-
40		-- [[LM75-dat]]
	43	+## demo code
41	44
	45	+- Temperature sensor == [[LM75-dat]]
	46	+- GPIO12 code to run == [[RPI-python-dat]]
42	47
43	48	## Note
44	49
...	...	@@ -51,7 +56,7 @@ Note when use this board and external 12V power supply to DC jack, you should NO
51	56
52	57	## ref
53	58
54		-- [[RPI-SDK-dat]] - [[RPI-dat]]
	59	+- [[RPI-SDK-dat]] - [[RPI-dat]] - [[RPI-python-dat]]
55	60
56	61	- [[power-protection-dat]] - [[DFK-dat]]
57	62

...	...	@@ -36,6 +36,14 @@ https://github.com/Edragon/RPI
36	36
37	37	- [[py-LM75-dat.py]]
38	38
	39	+read out
	40	+
	41	+ (test) root@raspberrypi:/home/pi# python lm75.py
	42	+ Temperature: 34.50 °C
	43	+ Temperature: 34.50 °C
	44	+ Temperature: 34.50 °C
	45	+ Temperature: 34.50 °C
	46	+
39	47
40	48
41	49	## ref

...	...	@@ -1 +1,23 @@
1	1
	2	+import smbus
	3	+import time
	4	+
	5	+# LM75 default I2C address (can vary, check your hardware)
	6	+LM75_ADDRESS = 0x48
	7	+LM75_TEMP_REGISTER = 0x00
	8	+
	9	+def read_lm75_temp(bus_num=1, address=LM75_ADDRESS):
	10	+ bus = smbus.SMBus(bus_num)
	11	+ # Read 2 bytes from temperature register
	12	+ data = bus.read_word_data(address, LM75_TEMP_REGISTER)
	13	+ # LM75 returns data in a swapped byte order
	14	+ temp_raw = ((data << 8) & 0xFF00) + (data >> 8)
	15	+ # Only the first 9 bits are temperature, shift to get value
	16	+ temp_c = (temp_raw >> 7) * 0.5
	17	+ return temp_c
	18	+
	19	+if __name__ == "__main__":
	20	+ while True:
	21	+ temp = read_lm75_temp()
	22	+ print(f"Temperature: {temp:.2f} °C")
	23	+ time.sleep(1)
...	...	\ No newline at end of file

...	...	@@ -3,19 +3,14 @@
3	3
4	4	- [[RPI-SDK-dat]] - [[RPI-HDK-dat]]
5	5
	6	+- [[python-env-dat]]
	7	+
6	8	apt-get install pip
7	9
8	10	Note, selecting 'python3-pip' instead of 'pip'
9	11
10	12	- [[rpi-python-gpio-demo-1.py]]
11	13
12		-## setup env
13		-
14		- python3 -m venv .venv
15		- source .venv/bin/activate
16		-
17		- pip install RPi.GPIO
18		- pip install SN74HC165
19	14
20	15
21	16	## rpi library
...	...	@@ -32,6 +27,10 @@ apt-get install pip
32	27	build-in library:
33	28	- time, threading,
34	29
	30	+install
	31	+
	32	+ pip install smbus, RPi
	33	+
35	34	### error
36	35
37	36	- ~~SN74HC165 ?? ~~
...	...	@@ -41,9 +40,17 @@ build-in library:
41	40
42	41	- [[74HC595-dat]] - [[74HC165-dat]]
43	42
	43	+## demo code
	44	+
	45	+- [[MPC1108-dat]] == IO12 run every 5 seconds == [[rpi-py-io12.py]]
	46	+
	47	+
	48	+
44	49
45	50	## ref
46	51
47	52	- [[rpi-dat]]
48	53
49		-- [[python-dat]]
...	...	\ No newline at end of file
	0	+- [[python-dat]]
	1	+
	2	+

...	...	@@ -0,0 +1,25 @@
	1	+import RPi.GPIO as GPIO
	2	+import time
	3	+
	4	+# Use BCM numbering for GPIO12 (physical pin 32)
	5	+led = 12 # GPIO12
	6	+switch = 31 # Update as needed for your switch GPIO
	7	+
	8	+GPIO.setmode(GPIO.BCM)
	9	+GPIO.setwarnings(False)
	10	+
	11	+GPIO.setup(led, GPIO.OUT)
	12	+GPIO.setup(switch, GPIO.IN)
	13	+
	14	+for i in range(10):
	15	+ GPIO.output(led, GPIO.HIGH)
	16	+ time.sleep(5)
	17	+ GPIO.output(led, GPIO.LOW)
	18	+ time.sleep(5)
	19	+ print('Switch status = ', GPIO.input(switch))
	20	+
	21	+GPIO.cleanup()
	22	+
	23	+
	24	+
	25	+

...	...	@@ -17,4 +17,14 @@
17	17	# 4. Install required luma libraries
18	18
19	19	pip install luma.oled
20		-
...	...	\ No newline at end of file
	0	+
	1	+
	2	+## and more
	3	+
	4	+## setup env
	5	+
	6	+ python3 -m venv .venv
	7	+ source .venv/bin/activate
	8	+
	9	+ pip install RPi.GPIO
	10	+ pip install SN74HC165