Introducción
This manual provides detailed instructions for the QIACHIP WL101 Superheterodyne Receiver and WL102 Transmitter 433MHz RF Wireless Module Kit. This kit is designed for various DIY projects, including remote control applications with platforms like Arduino UNO. It operates on the 433MHz frequency band and supports ASK/OOK modulation.
Contenido del paquete:
- 1 x WL101 Superheterodyne Receiver Module
- 1 x WL102 Transmitter Module
- 2 x Antennas (for receiver and transmitter)
Información de seguridad
Handle batteries with care. Avoid extreme temperatures. Do not interfere with other wireless devices.
Características del producto
- Frecuencia: RF de 433 MHz
- Modo de modulación: Supports ASK/OOK modulation
- Potencia de transmisión: Greater than 11dBm (for WL102 Transmitter)
- Receptor Tipo: Superheterodyne (for WL101 Receiver)
- Solicitud: Suitable for motorcycles, automobile anti-theft products, home security systems, electric doors, remote control sockets, LED lighting, garage door openers, and various remote control applications.
Presupuesto
WL101 Receiver Module
- Modelo: WL101
- Vol de funcionamientotage: Typically 3.3V - 5V (refer to specific datasheet for exact range)
- Corriente de funcionamiento: Bajo consumo de energía
- Frecuencia: 433 MHz
- Dimensiones: Approximately 1.18 inches x 0.35 inches (30mm x 9mm)

Descripción de la imagen: A green circuit board showing the WL101 receiver module with dimensions indicated. The length is approximately 1.18 inches and the width is 0.35 inches.
WL102 Transmitter Module
- Modelo: WL102
- Vol de funcionamientotage: Typically 3.3V - 12V (refer to specific datasheet for exact range)
- Corriente de funcionamiento: Varies with transmit power
- Frecuencia: 433 MHz
- Potencia de transmisión: >11 dBm
- Dimensiones: Aproximadamente 13 mm x 13 mm

Descripción de la imagen: A small blue circuit board showing the WL102 transmitter module with a ruler indicating its size, approximately 13 mm.
Pinout and Connections
WL101 Superheterodyne Receiver Pinout
The WL101 receiver module features six pins for power, ground, data output, and antenna connection. Refer to the diagram below for pin identification.

Descripción de la imagen: A green circuit board showing the WL101 receiver module. Six pins are labeled 1 through 6. Pin 1 is ANT (Antenna), Pin 2 is GND (Power ground), Pin 3 is VIN(VDD) (Power input), Pin 4 is DO(DATA) (Data output), Pin 5 is DO(DATA) (Data output), and Pin 6 is GND (Power ground).
| Pin No. | Etiqueta | Función |
|---|---|---|
| 1 | HORMIGA | Pasador de antena |
| 2 | Tierra | Pin de conexión a tierra |
| 3 | VIN(VDD) | Pin de entrada de energía |
| 4 | DO(DATA) | pin de salida de datos |
| 5 | DO(DATA) | pin de salida de datos |
| 6 | Tierra | Pin de conexión a tierra |
WL102 Transmitter Pinout
The WL102 transmitter module has pins for power, ground, data input, and antenna. Note that the EN (Enable) pin is internally connected to the power supply and has no external function.

Descripción de la imagen: A small green circuit board showing the WL102 transmitter module. It has four pins at the bottom. The text indicates 'DAT - Wave signal input', 'OUT - Antenna pin', 'EN - Enable Pin (connected to power supply, no function)', '-' Power ground Pin, '+' Power supply pin.
| Etiqueta | Función |
|---|---|
| Eso | Wave signal input |
| AFUERA | Antenna pin (RF signal output) |
| EN | Enable Pin (internally connected to power, no external function) |
| - (GND) | Pin de conexión a tierra |
| + (VCC) | pin de fuente de alimentación |
Example Connection to Arduino UNO (WL101 Receiver)
This diagram illustrates a typical connection of the WL101 receiver module to an Arduino UNO board. Ensure correct voltage and data pin connections.

Descripción de la imagen: A circuit diagram showing a QIACHIP WL101-341 Superheterodyne 433MHz Receiver connected to an Arduino UNO board. The receiver's VDD pin is connected to Arduino's 5V, GND to GND, and one of the DO(DATA) pins to a digital input pin (e.g., D2) on the Arduino. The antenna is shown connected to the ANT pin.
Configuración
Conexión de antena
For optimal performance, connect the supplied helical antenna to the ANT pin of the WL101 receiver and the OUT pin of the WL102 transmitter. The length of the antenna is critical for 433MHz operation; a quarter-wavelength antenna (approximately 17.3 cm or 6.8 inches for 433MHz) is recommended for best range, though the provided coiled antennas are suitable for shorter distances.
Fuente de alimentación
- WL101 Receiver: Connect the VIN(VDD) pin to a stable power source (e.g., 5V from Arduino) and GND to ground.
- WL102 Transmitter: Connect the '+' pin to a stable power source (e.g., 3.3V to 12V, depending on desired range and power) and '-' to ground.
Conexión de datos
- WL101 Receiver: Connect one of the DO(DATA) pins to a digital input pin on your microcontroller (e.g., Arduino).
- WL102 Transmitter: Connect the DAT pin to a digital output pin on your microcontroller.
Instrucciones de funcionamiento
Principio de funcionamiento básico
The WL102 transmitter sends data using Amplitude Shift Keying (ASK) or On-Off Keying (OOK) modulation at 433MHz. The WL101 superheterodyne receiver is designed to efficiently detect and demodulate these signals.
Microcontroller Programming (e.g., Arduino)
- Transmitter (WL102): Program your microcontroller to send digital data (e.g., ON/OFF pulses) to the DAT pin of the WL102. Libraries like "RCSwitch" or "VirtualWire" are commonly used for encoding and transmitting data.
- Receiver (WL101): Program your microcontroller to read digital data from the DO(DATA) pin of the WL101. The same libraries (e.g., "RCSwitch", "VirtualWire") can be used to decode the received signals.
- Protocolo de datos: Ensure that the data encoding and decoding protocols used by the transmitter and receiver microcontrollers are compatible.
Consideraciones de rango
The effective range of the modules depends on several factors, including antenna quality, power supply voltage (for transmitter), environmental interference, and line of sight. Optimal antenna tuning and clear line of sight will maximize range.
Mantenimiento
- Mantener seco: Protect the modules from moisture and humidity to prevent corrosion and damage.
- Conexiones limpias: Ensure all pin connections are clean and secure.
- Evite el estrés físico: Handle the modules carefully to prevent bending pins or damaging components.
- Cuidado de la antena: Ensure antennas are not bent or damaged, as this can significantly impact performance.
Solución de problemas
- Sin recepción de señal:
- Verify power connections to both modules.
- Check antenna connections and ensure they are properly sized for 433MHz.
- Confirm that the transmitter and receiver are operating on the same frequency (433MHz).
- Ensure the data encoding/decoding libraries and protocols are correctly implemented.
- Reduce distance between modules and check for obstructions or sources of interference.
- Corto alcance:
- Improve antenna quality (e.g., use a proper quarter-wavelength wire antenna).
- Increase transmitter power supply voltage (within specified limits).
- Minimize environmental interference (e.g., other 433MHz devices, Wi-Fi routers).
- Asegúrese de que haya una línea de visión clara entre el transmisor y el receptor.
- Operación intermitente:
- Compruebe si hay conexiones sueltas o uniones soldadas frías.
- Ensure stable power supply to both modules.
- Consider adding decoupling capacitors near power pins if experiencing noise issues.
- Module Appears Damaged:
- Inspect for visible signs of corrosion or physical damage. If found, replacement may be necessary.
Garantía y soporte
QIACHIP products are designed for reliability. For technical support or inquiries regarding your WL101/WL102 module kit, please refer to the seller's support channels or the QIACHIP official webSitio. Los detalles específicos de la garantía pueden variar según la región y el minorista.