Board-dat/IDD/IDD1013-DAT/IDD1013-DAT.md
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@@ -129,10 +129,10 @@ Updated by customer:
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## Demo video
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-- https://t.me/electrodragon3/57
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-- https://t.me/electrodragon3/231
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-
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+- https://t.me/electrodragon3/57 == pico board
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+- https://t.me/electrodragon3/231 == weather demo
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+- ESP32 with [[IDD1013-dat]] based on code PxMatrix - https://t.me/electrodragon3/41
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## ref
Board-dat/IDD/IDD1016-DAT/IDD1016-DAT.md
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@@ -59,6 +59,7 @@ The rest fixed used pin
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detailed wiring please refer to [pxmatrix code](https://github.com/2dom/PxMatrix)
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+Note to connect the input HUB75 to input of the panel, and the output HUB75 to output of the panel by cable.
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## demo code
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## demo video
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-- PxMatrix Demo video - https://t.me/electrodragon3/20
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-- ESP32 with [[IDD1016-dat]] based on code PxMatrix - https://t.me/electrodragon3/41
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-- more 1 - https://t.me/electrodragon3/146
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+- PxMatrix Demo video for [[ESP8266-dat]] - https://t.me/electrodragon3/20
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+
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+- IDD1013 wiring and coding demo - https://t.me/electrodragon3/146
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## ref
Chip-dat/Cirrus-dat/WM8978-dat.md
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+
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+# WM8978-dat.md
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+
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+The **WM8978** is a high-performance, low-power **stereo audio codec** from **Cirrus Logic (formerly Wolfson Microelectronics)**. It integrates a **stereo DAC (Digital-to-Analog Converter), a stereo ADC (Analog-to-Digital Converter), a headphone amplifier, and a microphone preamplifier**, making it ideal for portable and embedded audio applications.
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+
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+## **Key Features**
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+- **High-Quality Audio Processing**:
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+ - Supports **16/20/24/32-bit** resolution with **sample rates up to 48kHz**.
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+ - **DAC**: 98dB SNR (Signal-to-Noise Ratio), -84dB THD+N (Total Harmonic Distortion + Noise).
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+ - **ADC**: 90dB SNR, -80dB THD+N.
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+
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+- **Integrated Amplifiers**:
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+ - **Headphone amplifier** with volume control.
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+ - **Speaker driver** with differential mono output.
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+ - **Microphone preamplifier** with gain control and noise filtering.
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+
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+- **Audio Interfaces**:
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+ - **I²S, PCM** support for easy integration with MCUs and DSPs.
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+ - **Programmable digital audio effects**, including **3D enhancement, equalizer, bass, and treble control**.
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+
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+- **Low Power Consumption**:
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+ - Designed for **portable battery-powered devices**.
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+ - Operates on **1.8V - 3.3V** power supply.
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+
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+## **Common Applications**
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+- MP3 players and digital audio recorders.
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+- Embedded systems and IoT audio applications.
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+- Portable media devices and smart speakers.
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+- VoIP and intercom systems.
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+
Home.md
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- World Peace
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-- [[edragon]] - [[board]] - [[edragon-fab]]
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\ No newline at end of file
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+- [[edragon]] - [[board]] - [[edragon-fab]] - [[edragon-dev]]
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\ No newline at end of file
Tech-dat/audio-dat/audio-dat.md
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- [[I2S-dac-dat]] - [[I2S-microphone-dat]] - [[I2S-speaker-dat]] - [[I2S-amplifier-dat]]
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+
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+
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## sound frequency
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const int frequency = 600; // Frequency of the square wave in Hz (600 cycles per second)
Tech-dat/audio-dat/mp3-dat/mp3-dat.md
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sudo apt install mpg123
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mpg123 /path/to/audiofile.mp3
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+
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+
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+
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+web stream:
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+
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+ audio.connecttohost("http://mp3.ffh.de/radioffh/hqlivestream.mp3"); // 128k mp3 stream
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\ No newline at end of file
Tech-dat/audio-dat/wav-dat/wav-dat.md
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# wav-dat
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-- test wave [[test.wav]]
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+- test wave [[test.wav]] = 1411 kbps
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