: Actuates the radio's transceiver modes (RX/TX standby).
The is an adapter breakout board specifically designed for the nRF24L01+ 2.4GHz wireless transceiver module . Its primary function is to resolve common power supply and wiring issues encountered when interfacing these wireless modules with 5V microcontrollers like the Arduino Uno. 1. Key Technical Specifications
However, note that many low-cost YL105 modules do maintain true isolation if the jumper JD-VCC is shorted to VCC. For proper isolation: yl105 datasheet
: Standard development boards cannot deliver the erratic current spikes demanded by an nRF24L01 module during data transmission bursts. The YL-105 isolates the RF module from the MCU's internal power rail.
Operating RF microcontrollers requires clean, noise-free voltage translation. The YL-105 relies heavily on an to safely drop microcontroller system voltages down to the 3.3V logic level required by RF silicon. Specification / Value Input Supply Voltage ( VINcap V sub cap I cap N end-sub ) 4.8V to 12.0V DC 5.0V Recommended Regulated Output Voltage ( VOUTcap V sub cap O cap U cap T end-sub ) Factory adjusted Maximum Peak Output Current Peak handling of the AMS1117 core Continuous Operating Current Up to 600 mA Easily drives High-Power (PA+LNA) modules On-board Diagnostics Surface Mount red LED Illuminates upon stable VINcap V sub cap I cap N end-sub Physical Dimensions Ultra-compact breadboard-friendly footprint Understanding the Core Architecture : Actuates the radio's transceiver modes (RX/TX standby)
Note: While the power input is safely stepped down to 3.3V, the data pins (MOSI, MISO, SCK, CE, CSN) bypass the regulator and pass directly to the transceiver. Fortunately, the data input pins on the nRF24L01 chip are 5V-tolerant, meaning logic level shifters are usually unnecessary when pairing it with a 5V MCU. Input / Microcontroller Interface Side
Includes the AMS1117-3.3V IC for stable power. Voltage Input: Accepts 4.8V - 12V DC input. Output Voltage: Stable 3.3V DC. The YL-105 isolates the RF module from the
Whether you are automating your home, building a robot, or designing a safety cutoff, the YL105 offers a reliable bridge between the fragile world of microcontrollers and the demanding realm of high-power electronics. Always respect the voltage ratings, adhere to proper wiring practices, and consult the SRD-05VDC-SL-C and PC817 datasheets for deeper technical insight.
In an automated aquarium, the YL-105 monitors water clarity. If the voltage drops below a set threshold for 10 minutes (filtering out momentary disturbances), the system triggers a water pump to perform a partial water change.
The YL-105 break-out board features two main connector sections: a 6-pin male header row for your microcontroller connections and an 8-pin (2x4) female socket designed to seat the radio transceiver module. Microcontroller Interface (Input Headers) : Common Ground return connection.