Kids OK with adultESP32Level 2/3
A Glove That Turns Hand Signs Into Speech
Five bend sensors on a glove read your finger positions, and a small speaker says the word your hand sign means.
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Kids OK, with an adult
DIY project. Children must build this only with an adult (16+ years) beside them at all times. Not suitable for children under 8 years.
Low voltage only. Do not bend flex sensors sharply at the pin end, where they crack.
Strictly follow the description given with this video.
Video
How it works
- Each finger has a flex sensor whose resistance rises as the finger bends.
- With a 47k resistor it forms a divider, so the ESP32 reads a voltage for every finger.
- The five readings are compared with the saved signs, such as “Yes”, “Hello” and “Water”.
- When a sign matches, the ESP32 plays that word through the I2S amplifier and speaker.
Parts you need
Wiring
PowerGroundSignal
| # | From | Connect to |
|---|---|---|
| 1 Signal | Flex F1 (thumb) | ESP32 D32 |
| 2 Signal | Flex F2 (index) | ESP32 D35 |
| 3 Signal | Flex F3 (middle) | ESP32 D34 |
| 4 Signal | Flex F4 (ring) | ESP32 VN |
| 5 Signal | Flex F5 (little) | ESP32 VP |
| 6 Power | Each flex sensor, other end | ESP32 3V3 |
| 7 Ground | Each 47k resistor, from the sensor pin | GND |
| 8 Signal | Amplifier IN | ESP32 D26 |
3D print files
This project has no 3D-printed parts.