In this project, we are building an IoT based smart irrigation System using NodeMCU, Moisture sensor, and LDR. It will automatically sprinkle the water to plants when the moisture value goes below a particular value. It will also send the moisture data to Adafruit IO Server to keep track of the land condition.

2020年10月29日 · In this project, we are building an IoT based smart irrigation System using NodeMCU, Moisture sensor, and LDR. It will automatically sprinkle the water to plants when …

Sealed Light Dependent Resistors (LDR) 10K - 5mm. Hermetically sealed metal cap photoresistor are a special photoresistor set in an airtight environment with a special metal and glass window. The closed environment is filled with nitrogen, which completely isolates the photoresistor from the outside world, thus effectively extending its life cycle.

In this project we are building an IoT based smart irrigation System using NodeMCU, Moisture sensor, and LDR. It will automatically sprinkle the water to plants when the moisture value goes below a particular value. It will also send the moisture data to Adafruit IO Server to keep track of the land condition.

2015年10月3日 · You just create a voltage divider with one resistor being the LDR. 10k is about right to have a good range for daylight etc but you can use another value if you want. Don't go to low of the current trough the resistors/LDR gets to high.

A 10K linear PCB-mounting right-angle potentiometer. The pots are 16mm in size, made by Taiwan Alpha. They are widely used for stompbox projects and synths. They have a good solid feel and are a quality part. Download Taiwan Alpha 16mm pots datasheet

2010年2月17日 · I have got a 230V power supply with a 10k pot controlling the output voltage. I want to replace the pot with a LDR with the limits of when its completely dark, the power supply outputs 6V, and in sunlight, the output is 12V.

2006年3月6日 · There aren't many LDRs that won't operate in that range. The question is whether you need it to be no more than that value, no less than that value, or generally in the neighbourhood of that value.

2021年8月11日 · So with a 10k pot you have 10uA/step (ex. 8bit -1024 steps) and with a 100k would be 1uA. so yes, 100k will give larger range but ONLY if the ADC hardware can read 10bit, 12bit,16bit .... simply replacing the 10k with 100k, increases the physical pot range, same results.

2023年12月2日 · In this project, we will explore how to build an IoT-based smart irrigation system using NodeMCU ESP8266 and Adafruit IO. The system will incorporate a soil moisture sensor module, LDR, 10K pot, solenoid valve, and relay module, enabling remote control and monitoring of irrigation operations.