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89C52 Atmel ADC project board
The 89C52 Atmel ADC Project Board is an 8-bit microcontroller development board with built-in ADC for analog signal processing and embedded system projects.
The 89C52 Atmel ADC Project Board is a specialized development platform designed for learning and prototyping with the AT89C52 microcontroller, an 8-bit MCU based on the 8051 architecture. This board includes an onboard Analog-to-Digital Converter (ADC) module, enabling users to interface analog sensors, measure voltages, and process real-world analog signals in embedded projects.
It comes with essential components such as crystal oscillator, reset circuitry, power supply section, and ICSP support for programming. All I/O pins are accessible via headers for easy connection to LEDs, switches, LCDs, sensors, and relays. The onboard ADC simplifies experimentation with analog inputs, making it ideal for electronics learning and embedded system design.
Perfect for students, educators, hobbyists, and embedded developers, the 89C52 ADC Project Board is widely used in sensor-based projects, robotics, automation systems, and academic labs. Its compact design and clear labeling make it beginner-friendly while supporting advanced experimentation.

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- the receiving end of 0.4?, low voltage shutdown, thermal parking and circulation.
- circuit protection. After I design, you can set the current output of 0.5A 1A 1.8A 2.5A.
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Text to Speech TTL Module (Serial to Speech)
-  Single row 0.1″ header for easy connection to a host system
- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Â Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
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Text support rate is better
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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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 Voice effect optimization
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 Module miniaturization and easy integration
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Dimension: 33*27.5mm
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With mounting holes

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