Vocal Recorder/Player 20 seconds

By Boris Landoni on January 21, 2019

Based on the ISD1730 chip, this card allows you to record and play voice messages of up to 20 seconds.
The card has a microphone, audio input, 8 ohm speaker, AUX output, function control buttons and an LED that lights up when the chip is being recorded.
Power supply from 2.4 V to 5.5 V, dimensions (mm): 91.45 (length) x 68.60 (width) x 1.6 (thickness), mounted recorder weight: 74 grams…..

About Boris Landoni

Boris Landoni is the technical manager of Open-Electronics.org. Skilled in the GSM field, embraces the Open Source philosophy and its projects are available to the community.

OpenSource Products

SONY color camera module, 700 TV Lines
Color camera module equipped with a 1/3″ CCD sensor and...
- Posted 1 year ago
- 1
ESP32 Low Power Module
ESP32 Low Power Module, based on Espressif’s SoC capable of...
- Posted 1 year ago
- 0
Power supply latch
This power supply latch provides power to the external circuit...
- Posted 1 year ago
- 0
GSM/4G Remote Control with DTMF Commands
Two-way remote control system, based on the GSM/4G A7682E module...
- Posted 1 year ago
- 0
Acoustic amplifier – in DIY Kit
This kit creates a microphone amplifier with an output suitable...
- Posted 2 years ago
- 0
Clap sensor switch – in DIY Kit
It is capable of recognizing the sound of clapping hands...
- Posted 2 years ago
- 2
Liquid level indicator for tanks – in DIY kit
This monitoring device is useful for keeping track of the...
- Posted 2 years ago
- 0
LED candle with Breath-Activated ON/OFF – in DIY Kit
This LED candle with breath-activated ON/OFF function draws inspiration from...
- Posted 2 years ago
- 1

Tutorials

How to Adjust X and Y Axis Scale in Arduino Serial Plotter (No Extra Software Needed)
The Serial Plotter in Arduino is an excellent tool for...
- Posted 10 months ago
- 3
PCB CAD, A SELECTION GUIDE
Getting to know and evaluate the software offer for PCB,...
- Posted 4 years ago
- 0
DIY Sensor – Innovation & Implementation
A sensor converts data such as heat, light, sound,...
- Posted 5 years ago
- 0

Mods and Hacks

The flame that doesn’t burn
Based on Neopixel and a special ultra-thin Arduino, it simulates...
- Posted 3 years ago
- 1
Here are the Winners from the 3Drag 3d printing contest
Here we are, eventually the contest has come to an...
- Posted 11 years ago
- 0
Updates from the 3Drag 3dprinting contest: Roland Hoffert’s Hacks
Roland Hoffert, from www.eytec.de, submitted us this 3Drag (Velleman K8200...
- Posted 11 years ago
- 0
Updates from the 3Drag 3dprinting contest: Karl Seiss’s Hack
Karl Seiss from Austria made a very clever hack to...
- Posted 11 years ago
- 0

Popular
Latest
Comments

Arduino ISP (In System Programming) and stand-alone circuits
We use an Arduino to program other ATmega without...
- Posted 13 years ago
- 226
Arduino GSM shield
This is a very low...
- Posted 14 years ago
- 218
Localizer with SIM908 module
The device is based on a GSM/GPRS module with...
- Posted 13 years ago
- 187
GSM GPS shield for Arduino
Shield for Arduino designed and based on the module...
- Posted 13 years ago
- 181
Small Breakout for SIM900 GSM Module
Some post ago we presented a PCB to mount...
- Posted 14 years ago
- 115

How to Build a 1000W ZVS Induction Heater Using a Resonant RLC Circuit
Let’s Melt Metals Using the ZVS (Zero Voltage Switching)...
- Posted 4 weeks ago
- 0
How to Control NeoPixel Installations via Wi-Fi Using Fishino and NodeMCU with Python
We create NeoPixel light installations with Fishino and NodeMCU...
- Posted 9 months ago
- 0
How to Adjust X and Y Axis Scale in Arduino Serial Plotter (No Extra Software Needed)
The Serial Plotter in Arduino is an excellent tool...
- Posted 10 months ago
- 3
Elettronici Entusiasti: Inspiring Makers at Maker Faire Rome 2024
Maker Faire Rome 2024 is ready to amaze the...
- Posted 10 months ago
- 0
makeITcircular 2024 content launched – Part of Maker Faire Rome 2024
Applications to MakeITcircular must be in by October 3,...
- Posted 1 year ago
- 0