Board-dat/NID/NID1020-DAT/NID1020-DAT.md
... ...
@@ -10,25 +10,30 @@
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-## Notice:
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+## Notice about the distance:
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15 15
**Notice demo video shows the BEST ideal setup**, different setup can not get the same good result. Read more details in our wiki instructions.
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-**Please ONLY use with high quality cards**, if you use other cards, it may not work as expected distance.
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+- **Please ONLY use with high quality cards**, if you use other cards, it may not work as expected distance.
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+- only large and high quality card, not key fab tag (10~20CM), can get the best distance.
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+- MUST use pure power supply, preferrable battery, or linear regulator output (not DCDC), to avoid interferences.
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+
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+
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+
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## pin definitions
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21
-| pin | name | note |
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-| --- | -------------------------------------------------------------- | -------------------- |
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-| 1 | antenna 1 | **MUST CONNECT** |
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-| 2 | antenna 2 | **MUST CONNECT** |
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-| 3 | high-level election serial port, low-level selection of Wigan, | **THIS MUST SELECT** |
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-| 4 | buzzer output, no card low, a card output 2.7k square wave | |
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-| 5 | Serial TX output or Wigan 26 data D1 | data out |
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-| 6 | Wigan 26 data D0 | |
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-| 7 | reset terminal, active low to repeat reading | |
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-| 8 | ground | **MUST CONNECT** |
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-| 9 | power supply | **MUST CONNECT** |
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+| pin | name | note |
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+| --- | ------------------------------------------------------------------------ | -------------------- |
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+| 1 | antenna 1 | **MUST CONNECT** |
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+| 2 | antenna 2 | **MUST CONNECT** |
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+| 3 | high-level election serial port, low-level selection of [[Wiegand-dat]], | **THIS MUST SELECT** |
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+| 4 | buzzer output, no card low, a card output 2.7k square wave | |
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+| 5 | Serial TX output or Wigan 26 data D1 | data out |
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+| 6 | Wigan 26 data D0 | |
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+| 7 | reset terminal, active low to repeat reading | |
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+| 8 | ground | **MUST CONNECT** |
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+| 9 | power supply = 3.3V-6V | **MUST CONNECT** |
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- pin 1/2 antenna
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@@ -36,7 +41,7 @@
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- pin 5 tx output data
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- pin 8/9 power supply
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-
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+also support [[Wiegand-26-dat]] by set pin 3
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## read info
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@@ -69,6 +74,7 @@
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- https://w.electrodragon.com/w/Category:EL125
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- or Arduino demo code here: https://github.com/Edragon/arduino-main2/tree/main/0-BSP/NID/NID1020-EL-125
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+- [[atmega-serial-dat.c]]
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## demo video
74 80
Network-dat/RFID-dat/rfid-dat.md
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@@ -24,6 +24,13 @@ readers [[USB-dat]] based - [[NID1024-dat]]
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26 26
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+## interface types
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+
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+- [[EM4100]] - [[TK4100]] - [[4001]]
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+
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+- [[EM4305]]
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+
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+
27 34
28 35
## ref
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Network-dat/RFID-dat/wiegand-dat/Wiegand-26-dat/Wiegand-26-dat.md
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@@ -0,0 +1,96 @@
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+
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+# Wiegand-26-dat
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+
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+- [[wiegand-dat]] [[Wiegand-26-dat]] - [[Wiegand-34-dat]] - [[Wiegand-37-dat]]
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+
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+**Wiegand-26** is a **widely used RFID access-control data format**, not a wireless protocol.
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+It defines **how card data is encoded into 26 bits** and **transmitted from a reader to a controller**.
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+
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+> Correct name: **Wiegand-26**
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+> Common misspelling: *Wigan-26*
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+
12
+---
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+
14
+## What Does Wiegand-26 Do?
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+It specifies the **bit structure and wiring method** used to send an RFID card’s ID from:
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+- **RFID reader → Access controller**
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+
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+It does **NOT** define:
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+- RF frequency (125 kHz / 13.56 MHz)
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+- Card chip type
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+- Encryption method
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+
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+---
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+
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+## Wiegand-26 Bit Structure
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+Total: **26 bits**
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+
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+| Bit Position | Purpose |
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+| ------------ | --------------------------- |
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+| Bit 1 | Even parity (first 12 bits) |
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+| Bits 2–9 | Facility Code (8 bits) |
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+| Bits 10–25 | Card Number (16 bits) |
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+| Bit 26 | Odd parity (last 12 bits) |
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+
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+### Capacity
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+- Facility codes: **0–255**
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+- Card numbers: **0–65,535**
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+
39
+---
40
+
41
+## Electrical Interface
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+- **Two data lines**:
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+ - `DATA0` → pulse = logic 0
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+ - `DATA1` → pulse = logic 1
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+- **Plus**:
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+ - GND
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+ - Power (usually 5–12 V)
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+
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+No clock line — timing is pulse-based.
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+
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+---
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+
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+## Typical Use Cases
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+- Door access control
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+- Time & attendance systems
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+- Parking gates
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+- Elevators
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+
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+Very common in:
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+- 125 kHz proximity cards
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+- Low-cost access systems
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+
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+---
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+
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+## Advantages
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+- Simple
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+- Very widely supported
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+- Easy to integrate with controllers
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+
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+---
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+
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+## Limitations ❌
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+- No encryption
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+- Card ID is transmitted in plain form
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+- Vulnerable to cloning
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+- Short cable length (typically < 150 m)
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+
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+---
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+
80
+## Comparison with Other Formats
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+| Format | Bits | Security | Notes |
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+| ---------- | ------------ | -------- | ------------------ |
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+| Wiegand-26 | 26 | Low | Most common legacy |
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+| Wiegand-34 | 34 | Low | Larger card ID |
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+| Wiegand-37 | 37 | Low | Used by HID |
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+| OSDP | Packet-based | High | Encrypted, RS-485 |
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+
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+---
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+
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+## Important Note
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+**Wiegand-26 is a data format, not RFID itself.**
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+You can have:
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+- 125 kHz + Wiegand-26
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+- 13.56 MHz + Wiegand-26
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+
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+They are independent layers.
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\ No newline at end of file
Network-dat/RFID-dat/wiegand-dat/wiegand-dat.md
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@@ -1,6 +1,9 @@
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2 2
# wiegand-dat
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+- [[wiegand-dat]] [[Wiegand-26-dat]] - [[Wiegand-34-dat]] - [[Wiegand-37-dat]]
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+
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+
4 7
A **Wiegand device** typically refers to a component in an access control system that uses the **Wiegand interface** to communicate. This interface is a de facto standard for transmitting data from a card reader (like those for ID badges) to an access control panel.
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6 9
Key characteristics:
code-dat/atmega-serial-dat/atmega-serial-dat.c
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@@ -0,0 +1,49 @@
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+
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+# atmega-serial-dat
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+
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+使用ARV MEGA88单片机，串口中断接收卡号例程序
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+
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+
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+void Init_Uart (void) // 初始化波特率， 7.3728M晶振， 9600 8 N 1
8
+{
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+ UCSR0B = 0x00;
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+ UCSR0A = 0x00;
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+ UCSR0C = 0x06;
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+ UBRR0L = 0x26;
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+ UBRR0H = 0x00;
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+ UCSR0B = 0x90;
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+}
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+
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+
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+
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+#pragma vector = USART_RX_vect //串口中断 接收卡号。
20
+__interrupt void Usart_Rxc(void)
21
+{
22
+ char Rx_Char;
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+ Rx_Char = UDR0;
24
+ if(Rx_Char == 0X02) Rx_Length = 0; //收到数据头，接收计数从0开始
25
+ Rx[Rx_Length] = Rx_Char;
26
+ Rx_Length ++;
27
+ if (Rx_Char == 0X03 ) //收到数据尾
28
+ {
29
+ Comm_Start = 1; //数据接收完成标志位
30
+ cbi(UCSR0B,RXEN0); //暂时关闭串口
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+ }
32
+}
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+
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+
35
+
36
+void main (void)
37
+{
38
+ while(1)
39
+ {
40
+ if (Comm_Start == 1) //主程序判断 如果收到完整卡号
41
+ {
42
+ Comm_Start = 0;
43
+ sbi(UCSR0B,RXEN0); //打开串口接收
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+ LED_ON;
45
+ }
46
+ }
47
+}
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+
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+
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fab-dat/fab-standard-dat/ISO9001-dat/ISO9001-dat.md
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@@ -0,0 +1,90 @@
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+
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+# ISO9001-dat
3
+
4
+**ISO 9001** is an **international standard for Quality Management Systems (QMS)** issued by the **International Organization for Standardization (ISO)**.
5
+It defines how an organization should **manage processes to consistently meet customer and regulatory requirements and continually improve**.
6
+
7
+---
8
+
9
+## One-Sentence Explanation
10
+> **ISO 9001 is a standardized way to manage work so results are consistent, traceable, and continuously improving.**
11
+
12
+---
13
+
14
+## What Does ISO 9001 Focus On?
15
+ISO 9001 is **not about the product itself**, but about **how work is managed**.
16
+
17
+Core principles include:
18
+1. **Customer focus**
19
+2. **Process-based management**
20
+3. **Continuous improvement (PDCA cycle)**
21
+4. **Risk-based thinking**
22
+5. **Evidence-based decision making**
23
+
24
+---
25
+
26
+## What Does ISO 9001 Require?
27
+An organization must establish and operate a documented **Quality Management System**, typically covering:
28
+
29
+- Documented procedures and SOPs
30
+- Quality objectives and performance metrics
31
+- Supplier and material control
32
+- Process control (production or service)
33
+- Nonconformance handling & corrective actions
34
+- Internal audits & management review
35
+- Customer feedback and complaint handling
36
+
37
+> ISO 9001 does **not** tell you *how* to produce
38
+> It requires that your processes are **defined, controlled, recorded, and improved**
39
+
40
+---
41
+
42
+## Who Can Use ISO 9001?
43
+ISO 9001 is applicable to **any organization**, regardless of size or industry:
44
+
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+- Manufacturing
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+- Trading & import/export
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+- E-commerce
48
+- Software / IT
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+- Engineering, design, consulting
50
+- Small businesses and startups
51
+
52
+---
53
+
54
+## Benefits of ISO 9001 Certification
55
+### External Benefits
56
+- ISO 9001 certificate (internationally recognized)
57
+- Increased customer trust
58
+- Often required for bidding and supplier qualification
59
+
60
+### Internal Benefits
61
+- Clear workflows and responsibilities
62
+- Reduced errors and rework
63
+- Easier onboarding of new staff
64
+- Less dependence on individuals, more on systems
65
+
66
+---
67
+
68
+## Common Misunderstandings ❌
69
+- ❌ ISO 9001 guarantees high product quality
70
+ ✔ It guarantees a **qualified management system**
71
+- ❌ Only large companies need it
72
+ ✔ Small companies benefit even more
73
+- ❌ Certification is everything
74
+ ✔ Real value comes from actual implementation
75
+
76
+---
77
+
78
+## Quick Summary Table
79
+| Item | ISO 9001 |
80
+| ------------- | ---------------------------------- |
81
+| Type | Quality Management System Standard |
82
+| Focus | Management processes |
83
+| Certification | Yes |
84
+| Mandatory | No (voluntary) |
85
+| Applicable To | All industries |
86
+
87
+
88
+## ref
89
+
90
+- [[fab-standard-dat]]
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\ No newline at end of file
fab-dat/fab-standard-dat/fab-standard-dat.md
... ...
@@ -0,0 +1,4 @@
1
+
2
+# fab-standard-dat
3
+
4
+- [[ISO9001-dat]]
... ...
\ No newline at end of file