Yl105 Datasheet Better May 2026

The YL-105 (often designated as YL105) is primarily known as a specialized power adapter board designed for the nRF24L01 wireless module. While the name can also appear in industrial metal contexts (like the L105 aluminum alloy), its most common "datasheet" usage refers to this essential electronics component. The YL-105 Power Adapter: At a Glance

This board acts as a bridge between a standard 5V power supply and the sensitive 3.3V requirements of nRF24L01 wireless transceivers.

Primary Function: Down-regulates 5V DC input to a stable 3.3V DC output.

Key Components: Features an on-board AMS1117-3.3 voltage regulator chip and a power-on LED indicator.

The "Problem" it Solves: Standard microcontrollers (like some 8051 or Arduino variants) often run on 5V, which can damage the nRF24L01 module. The YL-105 provides a simple, 8-pin plug-and-play socket to handle this conversion safely. Technical Specifications Input Voltage Output Voltage 1.9V ~ 3.6V DC (Standard 3.3V) Current Draw Compatibility 8-pin nRF24L01+ Wireless Modules Form Factor Compact breakout board with standard header pins Potential Alternate: L105 Aluminum Alloy

If your report is focused on material science rather than electronics, the L105 is a high-strength copper-based aluminum alloy (2014A).

Mechanical Properties: It offers a high tensile strength of approximately 400 MPa and a proof stress of 290 MPa.

Common Applications: Used extensively in aerospace and defense for high-strength components due to its excellent machinability. yl105 datasheet better

Weakness: It has poor resistance to atmospheric corrosion and generally requires plating or anodizing. 5V-3.3V VCC Adapter Board for NRF24L01 Wireless Module

The YL105 (often designated as the YL-105) is a voltage regulator and breakout adapter specifically designed for the NRF24L01 2.4GHz wireless transceiver module. It is widely used in Arduino and hobbyist electronics to solve the common issue of power instability in wireless modules. Why You Need a "Better" YL105 Datasheet

Most users seek a "better" datasheet because the NRF24L01 module is notoriously sensitive to voltage fluctuations. While the transceiver itself operates at

, it often fails or resets when powered directly from an Arduino’s

pin due to insufficient current or electrical noise. The YL105 acts as a bridge, allowing you to use a stable input to provide clean power to the module. Technical Specifications & Features

The YL105 is not just a socket; it contains a dedicated AMS1117-3.3 (or equivalent) Low Dropout (LDO) regulator. Input Voltage Range: DC (Recommended from Arduino/USB). Output Voltage: DC (Stable output for NRF24L01). Maximum Output Current: Typically up to (Far exceeding the NRF24L01’s peak consumption of Onboard Components: Filter Capacitors: Usually includes capacitors to smooth out high-frequency noise. Power LED: Red LED indicator to confirm power input. Interface: Input: 2-pin header for VCCcap V sub cap C cap C end-sub GNDcap G cap N cap D Output: 8-pin female header for the NRF24L01 module. Wiring Diagram & Pinout

The YL105 passes the SPI data lines directly through to the Arduino while regulating the power lines. NRF24L01 Function Arduino Connection (Typical) GND VCC Power Input 5V Pin (Regulated to 3.3V on-board) CE Chip Enable Digital Pin 9 CSN SPI Chip Select Digital Pin 10 SCK Digital Pin 13 MOSI SPI Data In Digital Pin 11 MISO SPI Data Out Digital Pin 12 IRQ Interrupt (Optional) Digital Pin 2 Performance Comparison: Why the YL105 is "Better" The YL-105 (often designated as YL105 ) is

When comparing the YL105 adapter to a direct connection, the advantages are clear: Current Overhead: Standard Arduino pins often provide only . The YL105 leverages the rail to provide up to

, ensuring the module doesn't "brown out" during high-power transmission bursts.

Noise Suppression: Wireless modules are sensitive to EMI. The onboard bypass capacitors on the YL105 serve as a "better" solution than manual wiring with loose electrolytic capacitors.

Mechanical Stability: The 8-pin socket prevents loose jumper wires, which are a primary cause of "Module Not Found" errors in code. Common Troubleshooting

Check the LED: If the red Power LED is not lit, verify that your input voltage is at least

. The LDO regulator requires a "dropout" margin to function.

Voltage Logic: Note that while the YL105 powers the module at How to Get Better Readings Raw datasheets won’t

, the NRF24L01 data pins (CE, CSN, etc.) are 5V tolerant, meaning they can be connected directly to an Arduino Uno's logic pins without damage.

Range Issues: If you still experience poor range even with the YL105, ensure your antennas are not obstructed and that you are using a High PSRR Regulator setup if the environment is electrically noisy.

Адаптер YL-105 для модуля радио NRF24L01 (8-pin)

How to Get Better Readings

Raw datasheets won’t tell you this:

  • DO (digital output) threshold is set by the potentiometer. Turn it until the onboard trigger LED turns on/off at your desired moisture level.
  • AO (analog output) is non-linear. Use it for relative changes, not precise moisture percentages.
  • Sensor corrosion is a real issue. For long-term use, coat the copper traces with acrylic spray or use stainless steel probes.

1. Better Signal Integrity

The YL105 datasheet reveals a 100nF decoupling capacitor on the power rails. The standard DHT11 module (the blue 3-pin version) often lacks sufficient capacitance. This means:

  • Less noise on long wires (up to 10 meters).
  • Fewer CRC errors (Checksum failures).
  • Better performance next to motors or relays.

2. Self-Heating

If you read the YL105 faster than 1 Hz (e.g., every 500ms), the internal thermistor will self-heat by 2-3°C. The datasheet does not warn about this clearly. Better practice: Limit reads to once every 2 seconds for temperature accuracy, even if humidity can refresh faster.

What is the YL-105?

The YL-105 is a wireless serial communication module designed for short-to-medium range data transmission. It typically operates on the 433 MHz frequency band (though variations exist, always check the crystal oscillator on the board).

It is designed to be a "cable replacement." This means that whatever data you send into the module via Serial TX/RX pins comes out of the other module's Serial pins. This makes it incredibly easy to use because it requires no complex wireless protocols—you just treat it like a direct serial connection.

Common Applications:

  • Wireless sensor networks (temperature, humidity).
  • Home automation (controlling lights/relays).
  • Remote control for robots or RC cars.
  • Simple point-to-point data logging.