Board-dat/MSP/MSP1076-dat/msp1076-dat.md
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@@ -3,6 +3,9 @@
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RS485 auto board 1
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+[RS-485 Breakout Board, Auto Direction, MAX13487](https://www.electrodragon.com/product/rs-485-breakout-board-auto-direction-max13487/)
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+
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+
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## Board Features
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- TXD / RXD data indicator LEDs
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@@ -58,4 +61,4 @@ Right Side Pins
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- [[eagle-cad-dat]]
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-- [[interface-dat]]
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\ No newline at end of file
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+- [[interface-dat]] - [[RS485-dat]]
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\ No newline at end of file
Board-dat/SCU/SCU1080-dat/SCU1080-dat.md
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@@ -14,8 +14,12 @@ common application
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[product url](https://www.electrodragon.com/product/self-drive-pizeo-buzzer-alarm/)
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+
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+
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+
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+
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## ref
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-- [[piezo-dat]]
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+- [[piezo-dat]] - [[buzzer-dat]]
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- [[SCU1080]]
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\ No newline at end of file
Board-dat/STH/STH1078-dat/STH1078-DAT.md
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@@ -14,7 +14,7 @@ Three sensing measurement in one module:
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Specs:
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- Current selling version == DN8
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-- Customizable == DN10
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+- Optional Customizable == DN10
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### Board Map
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Tech-dat/Interface-dat/RS485-dat/RS485-DAT.md
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@@ -95,4 +95,4 @@ If your goal is **long-range video transmission**, consider:
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- [[interface-dat]] - [[video-dat]]
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-- [[RS485]]
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\ No newline at end of file
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+- [[RS485]] - [[RS232]]
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\ No newline at end of file
Tech-dat/acturator-dat/Peltier-dat/Peltier-dat.md
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@@ -52,4 +52,7 @@ The side with words are the cooling side, and other side is the warm side.
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## Ref
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+- [[effects-dat]]
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+
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+
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- [Product link](https://www.electrodragon.com/product/tec1-12706-thermoelectric-peltier-cooler-12v-60w/)
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\ No newline at end of file
Tech-dat/acturator-dat/buzzer-dat/buzzer-dat.md
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@@ -8,6 +8,9 @@ active buzzer
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passive buzzer
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- [[SSL1011-dat]] - [[SSL1012-dat]]
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+[[piezo-dat]] buzzer
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+- [[SCU1080-dat]]
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+
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## Types of Buzzers
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Tech-dat/acturator-dat/piezo-dat/piezo-dat.md
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@@ -1,3 +1,47 @@
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# piezo-dat
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+
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+**Piezoelectric Effect (Piezo Effect)**
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+
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+The **piezoelectric effect** is a phenomenon where **certain materials generate an electric voltage when mechanical stress (pressure, force, or vibration) is applied to them**.
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+
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+This effect also works in reverse — when an electric field is applied, the material **changes its shape slightly (mechanical deformation)**.
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+
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+---
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+
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+### 🧩 Types
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+1. **Direct Piezoelectric Effect**
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+ - Mechanical stress → Electric charge.
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+ - Used in sensors (like microphones, vibration sensors, pressure sensors).
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+
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+2. **Reverse Piezoelectric Effect**
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+ - Electric voltage → Mechanical deformation.
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+ - Used in actuators (like speakers, ultrasound transducers, piezoelectric motors).
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+
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+---
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+
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+### ⚙️ Example Materials
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+- Quartz (SiO₂)
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+- Rochelle salt
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+- Barium titanate (BaTiO₃)
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+- Lead zirconate titanate (PZT)
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+
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+---
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+
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+### 🔋 Simple Example
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+When you **press a quartz crystal**, it creates a **small electric voltage**.
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+When you **apply a voltage** to the same crystal, it **vibrates**.
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+
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+---
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+
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+### 🧠 Applications
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+- **Microphones:** Convert sound vibrations → electrical signals.
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+- **Buzzers:** Convert electrical signals → sound vibrations.
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+- **Ultrasound machines:** Generate and detect sound waves.
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+- **Lighters:** Spark generated by pressure on a piezo crystal.
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+- **Sensors:** Detect acceleration, force, or pressure.
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+
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+## ref
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+
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+- [[effects-dat]]
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\ No newline at end of file
Tech-dat/effects-dat/effects-dat.md
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@@ -2,6 +2,14 @@
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# effects-dat
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+- [[thermoelectric-dat]]
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+
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+- [[Seebeck-dat]] - [[Peltier-dat]]
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+
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+- [[piezo-dat]]
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+
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+
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+
5 13
## thermoelectric system
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- **Seebeck Effect** — Temperature difference generates voltage. - [[Seebeck-dat]]