STM32 TDS Sensor Tutorial | Test Water Quality at Home

Описание: Learn to build a TDS water quality sensor with STM32 microcontroller! This complete tutorial shows you how to measure Total Dissolved Solids in water for testing drinking water, aquariums, hydroponics, and more.
In this video, you'll learn how to interface a TDS sensor with STM32, read analog values using ADC, implement 30-sample averaging for stable readings, and display results via UART. Perfect for embedded systems beginners and IoT enthusiasts!

🔧 COMPONENTS NEEDED:

STM32 Nucleo Board (any STM32)
TDS Sensor Module (KS0429 or compatible)
TDS Probe
USB Cable
Water samples for testing

📥 DOWNLOAD CODE & RESOURCES:

Complete STM32 code: https://github.com/RJN12/STM32-CODE/b...


📊 TDS INTERPRETATION GUIDE:

0-50 ppm: Pure/Distilled water
50-150 ppm: Excellent drinking water
150-300 ppm: Good drinking water
300-500 ppm: Fair quality
500-1000 ppm: Poor quality
1000+ ppm: Not suitable for drinking

💡 WHAT YOU'LL LEARN:
✓ STM32 HAL ADC configuration
✓ Signal averaging for noise reduction
✓ RTC timer implementation
✓ UART serial communication
✓ Cubic polynomial conversion formulas
✓ Real-time sensor data processing

🎯 APPLICATIONS:

Home drinking water testing
Aquarium water quality monitoring
Hydroponic nutrient measurement
Swimming pool maintenance
Coffee brewing water optimization
Water filter performance testing

🔍 TECHNICAL SPECIFICATIONS:

ADC Resolution: 12-bit (4096 levels)
Voltage Reference: 3.3V
Measurement Range: 0-1000 ppm
Accuracy: ±10% at 25°C
Sampling Rate: 30 samples per reading
Update Interval: Every 2 seconds

🛠️ TROUBLESHOOTING COVERED:

Fixing erratic readings
Probe cleaning techniques
Connection verification
UART debugging
Common compile errors

📺 RELATED VIDEOS:

STM32 ADC Tutorial:    • STM32 : ADC using STM32CUBE IDE  
UART Communication Basics:    • STM32 : USART/UART TX/RX Coding using STM3...  
RTC Basics:    • STM32 RTC Timer Explained: LED Blinking Wi...  

💬 QUESTIONS? Drop them in the comments! I read and reply to every comment.
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