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MT3608 DC-DC Step Up Module
MT3608 DC-DC step-up (boost) module with adjustable output—ideal for Arduino, battery-powered devices, and DIY electronics projects.
The MT3608 DC-DC Step-Up Module is a compact and efficient boost voltage converter designed to increase a lower DC input voltage to a higher adjustable DC output. Based on the MT3608 IC, it delivers high efficiency and stable performance, making it ideal for battery-powered and portable electronics projects.
This module supports a wide input voltage range (typically 2V–24V) and provides an adjustable output voltage up to 28V via an onboard potentiometer. It is commonly used in Arduino, ESP32, Raspberry Pi, LED lighting, power banks, robotics, and DIY electronics, where a reliable voltage boost is required.
With its small size, low ripple, and high conversion efficiency, the MT3608 step-up module is an excellent choice for hobbyists and professionals working on compact embedded systems.

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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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