5V DC (can handle 5V-12V in some implementations). Output Voltage: 3.3V DC (Stable regulated output). Module Compatibility: Designed for 8-pin NRF24L01+ modules. On-board Regulator: AMS1117-3.3 voltage regulator chip. Dimensions: Approximately
High resistance, leading to a high analog output value (near in Arduino).
In automotive and HVAC applications, YL-105 refers to a pressure switch that activates or deactivates a compressor based on system pressure readings. These switches are found in vehicle air conditioning systems and industrial air compressors.
The is a versatile and cost-effective humidity sensor module commonly used in electronics projects, industrial automation, and IoT applications . It offers both digital and analog outputs, making it highly adaptable for hobbyists using Arduino or Raspberry Pi, as well as for prototyping industrial sensor systems. yl-105 datasheet
: They are generally RoHS compliant and meet various MIL-SPEC standards (like AMS-DTL-23053). 4. Application Best Practices
Independent direction of rotation, featuring a drive sleeve transmission. Pressure & Temperature:
Features an onboard potentiometer to calibrate the sensitivity of the digital trigger. Indicator LEDs: 5V DC (can handle 5V-12V in some implementations)
: Digital input used to transition the radio between standby, transmit, and receive modes.
delay(100);
This is a consumer-grade security device that uses a Passive Infrared (PIR) sensor to detect movement and sound an integrated siren. On-board Regulator: AMS1117-3
The YL-105 is popularly paired with Arduino for automated irrigation. Arduino Wiring -> Arduino GND -> Arduino GND AO -> Arduino A0
This blog post covers the technical specifications and application of the sensor module
The YL-105 regulator serves as an essential interface component because the nRF24L01+ modules are not 5V-tolerant on their power supply pins. Applying 5V directly to these modules can damage or destroy them. The YL-105 steps down the 5V supply to a clean 3.3V, ensuring reliable operation and protecting the sensitive RF module.
| YL-105 Pin Label | Typical Arduino Connection | Function Description | | :--- | :--- | :--- | | | GND | Common ground connection. | | VCC | 5V | Power Input : Provide clean 5V power to the adapter. | | CE | Pin 9 | Chip Enable (RX/TX control). | | CSN | Pin 8 | SPI Chip Select (active low). | | SCK | Pin 13 | SPI Clock line. | | MOSI | Pin 11 | SPI Master-Out, Slave-In. | | MISO | Pin 12 | SPI Master-In, Slave-Out. |