MT8870 DTMF Audio/Speech Decoding Telephone Module
₹130Specifications:
- Main Chip: MT8870DS
- Operating Voltage: 5V
- Power Consumption: Max 500mW
- Operating Temperature: -40°C to +85°C
- Board Color: Blue
- Dimensions: 27mm × 25mm × 10mm
- Weight: 5g
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🔹 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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| Parameter | Value |
| Model | MG995 |
| Weight | 55g |
| Operating Voltage | 4.8V – 7.2V |
| Torque @ 4.8V | 10kg/cm |
| Torque @ 6.6V | 12kg/cm |
| Operating Speed @ 4.8V | 0.20 sec/60° |
| Operating Speed @ 6.6V | 0.16 sec/60° |
| Rotational Angle | 180° (±90°) |
| Dead Band Width | 1 µs |
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