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The PT2272 4-Channel RF Remote Control is a wireless transmitter-receiver pair designed for remote-controlled applications such as toy cars, home automation, and short-distance wireless switching. Operating at +5V DC, it provides momentary operation, meaning that the output remains active only while the corresponding button is pressed. This RF module offers a 100-meter range in open…
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Specifications
| Parameter | Value |
| Ethernet Standard | 10Base-T |
| Communication Interface | SPI (Serial Peripheral Interface) |
| Max SPI Clock Speed | 20MHz |
| Crystal Oscillator | 25MHz |
| Ethernet Port | HanRun HR911105A |
| Supply Voltage | 3.3V (5V-tolerant inputs) |
| Operating Current | ~180mA |
| Board Dimensions | 57mm × 34mm × 16mm |
| Weight | 14g |
Specifications:
📌 Pin Description
🔹 VCC – Power input (3.3V–5V)
🔹 GND – Ground
🔹 TXD – UART Transmit
🔹 RXD – UART Receive
🔹 STATE – Internal LED status pin (optional)
🔹 BRK – Disconnect Bluetooth connection (optional)
Specifications:
🔹 Type: RFID Contactless Smart Card
🔹 Chip Type: MIFARE 1K (or similar)
🔹 Operating Frequency: 13.56MHz
🔹 Protocol: ISO 14443A
🔹 Storage Capacity: 1KB EEPROM
🔹 Reading Distance: Up to 10cm (varies by reader)
🔹 Material: PVC plastic
🔹 Dimensions: 85.6 x 54 mm (Standard Credit Card Size)
🔹 Color: White
🔹 Weight: Approx. 6g per card
Specifications:
Specifications:
🔹 Operating Voltage: 3.3V DC (5V tolerant with level shifters)
🔹 Current Consumption: 13-26mA
🔹 Frequency: 13.56 MHz
🔹 Interface: SPI (default), I2C, UART
🔹 Data Transfer Rate: 10 Mbps
🔹 Reading Distance: Up to 5 cm
🔹 Card Types Supported: MIFARE 1K, MIFARE 4K, Ultralight, DESFire, Plus
🔹 Operating Temperature: -20°C to +80°C
🔹 Dimensions: 60mm x 39mm
📌 Specifications
🔹 Chipset: MAX3232
🔹 Operating Voltage: 3.3V – 5V DC
🔹 Baud Rate: Up to 120kbps
🔹 Communication Interface: RS232 (DB9) to TTL
🔹 DB9 Connector Type: Male
🔹 Logic Level: TTL (0V – 5V)
🔹 Operating Temperature: -40°C to 85°C
🔹 Module Dimensions: Compact and lightweight
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