Board-dat/NBL/NBL1089-DAT/NBL1089-DAT.md
... ...
@@ -20,15 +20,13 @@
20 20
- Please notice microphone is not pre-soldered on board, you can do it yourself or add note to ask us to do it when you place order.
21 21
- More function is developing now, any updates we will update on wiki page. Also support customize.
22 22
23
-## Demos
24 23
24
+## Demos
25 25
26
-* Pair with audio play box, and send human voice via speaker
27
-* https://twitter.com/electro_phoenix/status/1114019811690856452
28
-* Pair with audio play box, and PC -> audio -> AUX_IN to play
29
-* https://twitter.com/electro_phoenix/status/1401807228126908429?s=20
30 26
31
-- https://t.me/electrodragon3/159
27
+* [Pair with audio play box, and send human voice via speaker](https://twitter.com/electro_phoenix/status/1114019811690856452)
28
+* [Pair with audio play box, and PC -> audio -> AUX_IN to play](https://twitter.com/electro_phoenix/status/1401807228126908429?s=20)
29
+* https://t.me/electrodragon3/159
32 30
33 31
34 32
... ...
@@ -38,3 +36,7 @@
38 36
- https://w.electrodragon.com/w/Category:EDMBT
39 37
- https://www.electrodragon.com/product/bluetooth-audio-transmitter-receiver-board-embt-s02/
40 38
39
+- [[jieli-dat]]
40
+
41
+- [[sensor-microphone-dat]] - [[AUX-dat]] - [[USB-dat]]
42
+
Board-dat/NWI/NWI1050-DAT/NWI1050-DAT.md
... ...
@@ -6,11 +6,23 @@
6 6
7 7
![](49-45-17-28-06-2023.png)
8 8
9
-back side functions:
9
+Functions
10
+
11
+- IO0 press button (manual program mode)
12
+- RST press button
13
+- pull-up EN IO2 and IO15 for boot mode
14
+- 3.3V power supply [[LDO-dat]]
15
+- Simple 5V/3V3 logic compliant level shifter for serial TXD and RXD
16
+
17
+
18
+back side optional functions:
10 19
- IO4 IO5 pull up resistors via jumpers
11 20
- ADC resistor ladders via jumppers
12 21
13 22
23
+
24
+
25
+
14 26
## Dimension
15 27
16 28
![](52-48-17-28-06-2023.png)
... ...
@@ -18,12 +30,12 @@ back side functions:
18 30
19 31
## ref
20 32
21
-- [[ESP-SDK-dat]]
33
+- [[ESP-SDK-dat]] - [[ESP8266-dat]] - [[esp8266-modules-dat]]
22 34
- https://www.electrodragon.com/w/Category:ESP8266_Hardware#Perpherial_Schematic
23 35
- flash guide - https://www.electrodragon.com/flash-firmware-for-nodemcu-on-esp-12f-with-breakout-board/
24 36
25 37
26
-## Version Log
38
+## Version Update Log
27 39
28 40
- R2 version support not only ESP-07, ESP-12 but also new ESP-12F, which has extra 6 pis (SPI and I/Os)
29 41
- Fixed: Note pin IO4 and IO5 is switched, not same as ESP-12F pinout (we used early version pinout).
... ...
\ No newline at end of file
Board-dat/NWI/NWI1053-dat/NWI1053-dat.md
... ...
@@ -0,0 +1,4 @@
1
+
2
+# NWI1053-dat
3
+
4
+refer to [[NWI1050-dat]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/2025-03-21-17-46-02.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/2025-03-21-17-46-02.png differ
Tech-dat/Sensor-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/2025-03-21-17-46-44.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/2025-03-21-17-46-44.png differ
Tech-dat/Sensor-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/Electret-Condenser-Microphone-dat.md
... ...
@@ -0,0 +1,61 @@
1
+
2
+# Electret-Condenser-Microphone-dat
3
+
4
+- in short == ECM
5
+
6
+
7
+An **Electret Condenser Microphone (ECM)** is a type of microphone that uses an electret material for its diaphragm and a built-in field-effect transistor (FET) to amplify the signal. It is one of the most common types of microphones used in consumer audio devices.
8
+
9
+Here's how the relationship between an ECM and the MAX9812 or ICS-41434 compares:
10
+
11
+### **Electret Condenser Microphone (ECM)**:
12
+
13
+1. **Type**: An analog microphone that uses a capacitor-based diaphragm (the electret) to capture sound.
14
+2. **Powering**: Requires a power source known as **bias voltage** (typically 1.5V to 10V), which is applied to the diaphragm and the internal FET for amplification.
15
+3. **Signal Output**: Provides an analog output signal that needs additional circuitry for amplification or processing.
16
+4. **Sensitivity**: Generally offers good sensitivity but can be susceptible to noise or interference unless properly shielded and processed.
17
+5. **Use Case**: Commonly used in a wide variety of applications, including consumer audio devices, microphones for cameras, recording, and communication systems.
18
+
19
+
20
+## board
21
+
22
+- [[SSL1017-dat]]
23
+
24
+## EM-B6050UL
25
+
26
+## 适用范围： Scope
27
+
28
+本规格书适用于驻极体式电容传声器 - This spccification applies electret condenser microphone (E.C.M)
29
+
30
+型号： - Model No. EM-B6050UL
31
+
32
+使用条件： - Operation Condition
33
+
34
+- 3.1 环境温度 - Temperature -20~+70℃
35
+- 3.2 相对湿度 - Rel,Humidity 35%~85%RH
36
+- 3.3 大气压力 - Pressure 86~106Kpa
37
+- 3.4 环境噪声 - Environmental Noise 36dB (最大) - 36dB (Maximum)
38
+- 3.5 工作电压范围 - Operation Voltage 1~10VDC
39
+- 3.6 接地方式： - Earth ⊙
40
+
41
+电性能 Electrical Characteristics
42
+
43
+- 4.1 基准工作电压 - StandardOperationVoltage 4.5VDC
44
+- 4.2 阻抗 - Impedance 小于2.2KΩ - Less than 2.2KΩ
45
+- 4.3 消耗电流 - Current Consumption 0.5mA (最大) - 0.5mA (Maximum)
46
+- 4.4 灵敏度 - Sensitivity -50dB±3dB(0dB=1V/Pa,1KHz) -- Vs=4.5V R1=2.2KΩ
47
+- 4.5 指向性 - Directivity 单指向性 - Unidirectional
48
+- 4.6 信噪比 - S/N Ratio 56dB(最小) - 56dB(Minimum)
49
+
50
+4.7 测试电路图 - Schematic Diagram - Vs= 1.5V ； - R1=680Ω； - C=1uF
51
+
52
+![](2025-03-21-17-46-02.png)
53
+
54
+4.8 测试环境温度 - Test Temperature - 测试环境湿度 - Rel.Humidity
55
+
56
+20℃±2℃ - 45%~65%RH
57
+
58
+4.9 频率响应曲线 - Frequency Response
59
+
60
+
61
+![](2025-03-21-17-46-44.png)
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-dat.md
... ...
@@ -0,0 +1,26 @@
1
+
2
+# microphone-sensor-dat
3
+
4
+- [[I2S-microphone-dat]]
5
+
6
+- [[Analog-microphone-dat]] - [[Electret-Condenser-Microphone-dat]]
7
+
8
+| Feature | Electret Condenser Microphone (ECM) | MAX9812 | ICS-41434 |
9
+|---------------------------------|---------------------------------------------|------------------------------------------|------------------------------------------|
10
+| **Type** | Analog, capacitive (with FET) | Analog (with AGC) | Digital (MEMS, I2S) |
11
+| **Powering** | Requires bias voltage (1.5V to 10V) | Requires 2.7V to 3.6V (integrated power) | Requires 1.8V to 3.6V (integrated power) |
12
+| **Signal Output** | Analog | Analog output (with AGC) | Digital output (I2S) |
13
+| **Amplification** | Needs external amplifier or preamp | Built-in amplification with AGC | Built-in digital conversion (I2S) |
14
+| **Size** | Larger, with external components | Small, integrated AGC | Very compact, MEMS-based |
15
+| **Technology** | Traditional electret condenser | Integrated analog microphone with AGC | MEMS technology (digital) |
16
+| **Use Case** | General-purpose audio recording, comm systems | Voice recording, audio applications | Portable devices, IoT, consumer electronics |
17
+
18
+- **Powering**: ECMs need a bias voltage to function, whereas the MAX9812 and ICS-41434 use internal power supplies (usually lower voltage).
19
+- **Signal Output**: ECMs give an analog output that often requires additional processing, while the MAX9812 provides analog output with built-in gain control, and the ICS-41434 outputs a digital signal (I2S) directly.
20
+- **Technology**: ECMs use a traditional electret condenser design with a FET, while the MAX9812 is an analog microphone with AGC, and the ICS-41434 uses MEMS technology.
21
+
22
+
23
+
24
+## ref
25
+
26
+- [[LM393-dat]] - [[I2S-dat]]
... ...
\ No newline at end of file
Tech-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/2025-03-21-17-46-02.png
... ...
Binary files a/Tech-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/2025-03-21-17-46-02.png and /dev/null differ
Tech-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/2025-03-21-17-46-44.png
... ...
Binary files a/Tech-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/2025-03-21-17-46-44.png and /dev/null differ
Tech-dat/sensor-microphone-dat/Electret-Condenser-Microphone-dat/Electret-Condenser-Microphone-dat.md
... ...
@@ -1,61 +0,0 @@
1
-
2
-# Electret-Condenser-Microphone-dat
3
-
4
-- in short == ECM
5
-
6
-
7
-An **Electret Condenser Microphone (ECM)** is a type of microphone that uses an electret material for its diaphragm and a built-in field-effect transistor (FET) to amplify the signal. It is one of the most common types of microphones used in consumer audio devices.
8
-
9
-Here's how the relationship between an ECM and the MAX9812 or ICS-41434 compares:
10
-
11
-### **Electret Condenser Microphone (ECM)**:
12
-
13
-1. **Type**: An analog microphone that uses a capacitor-based diaphragm (the electret) to capture sound.
14
-2. **Powering**: Requires a power source known as **bias voltage** (typically 1.5V to 10V), which is applied to the diaphragm and the internal FET for amplification.
15
-3. **Signal Output**: Provides an analog output signal that needs additional circuitry for amplification or processing.
16
-4. **Sensitivity**: Generally offers good sensitivity but can be susceptible to noise or interference unless properly shielded and processed.
17
-5. **Use Case**: Commonly used in a wide variety of applications, including consumer audio devices, microphones for cameras, recording, and communication systems.
18
-
19
-
20
-## board
21
-
22
-- [[SSL1017-dat]]
23
-
24
-## EM-B6050UL
25
-
26
-## 适用范围： Scope
27
-
28
-本规格书适用于驻极体式电容传声器 - This spccification applies electret condenser microphone (E.C.M)
29
-
30
-型号： - Model No. EM-B6050UL
31
-
32
-使用条件： - Operation Condition
33
-
34
-- 3.1 环境温度 - Temperature -20~+70℃
35
-- 3.2 相对湿度 - Rel,Humidity 35%~85%RH
36
-- 3.3 大气压力 - Pressure 86~106Kpa
37
-- 3.4 环境噪声 - Environmental Noise 36dB (最大) - 36dB (Maximum)
38
-- 3.5 工作电压范围 - Operation Voltage 1~10VDC
39
-- 3.6 接地方式： - Earth ⊙
40
-
41
-电性能 Electrical Characteristics
42
-
43
-- 4.1 基准工作电压 - StandardOperationVoltage 4.5VDC
44
-- 4.2 阻抗 - Impedance 小于2.2KΩ - Less than 2.2KΩ
45
-- 4.3 消耗电流 - Current Consumption 0.5mA (最大) - 0.5mA (Maximum)
46
-- 4.4 灵敏度 - Sensitivity -50dB±3dB(0dB=1V/Pa,1KHz) -- Vs=4.5V R1=2.2KΩ
47
-- 4.5 指向性 - Directivity 单指向性 - Unidirectional
48
-- 4.6 信噪比 - S/N Ratio 56dB(最小) - 56dB(Minimum)
49
-
50
-4.7 测试电路图 - Schematic Diagram - Vs= 1.5V ； - R1=680Ω； - C=1uF
51
-
52
-![](2025-03-21-17-46-02.png)
53
-
54
-4.8 测试环境温度 - Test Temperature - 测试环境湿度 - Rel.Humidity
55
-
56
-20℃±2℃ - 45%~65%RH
57
-
58
-4.9 频率响应曲线 - Frequency Response
59
-
60
-
61
-![](2025-03-21-17-46-44.png)
... ...
\ No newline at end of file
Tech-dat/sensor-microphone-dat/sensor-microphone-dat.md
... ...
@@ -1,26 +0,0 @@
1
-
2
-# microphone-sensor-dat
3
-
4
-- [[I2S-microphone-dat]]
5
-
6
-- [[Analog-microphone-dat]] - [[Electret-Condenser-Microphone-dat]]
7
-
8
-| Feature | Electret Condenser Microphone (ECM) | MAX9812 | ICS-41434 |
9
-|---------------------------------|---------------------------------------------|------------------------------------------|------------------------------------------|
10
-| **Type** | Analog, capacitive (with FET) | Analog (with AGC) | Digital (MEMS, I2S) |
11
-| **Powering** | Requires bias voltage (1.5V to 10V) | Requires 2.7V to 3.6V (integrated power) | Requires 1.8V to 3.6V (integrated power) |
12
-| **Signal Output** | Analog | Analog output (with AGC) | Digital output (I2S) |
13
-| **Amplification** | Needs external amplifier or preamp | Built-in amplification with AGC | Built-in digital conversion (I2S) |
14
-| **Size** | Larger, with external components | Small, integrated AGC | Very compact, MEMS-based |
15
-| **Technology** | Traditional electret condenser | Integrated analog microphone with AGC | MEMS technology (digital) |
16
-| **Use Case** | General-purpose audio recording, comm systems | Voice recording, audio applications | Portable devices, IoT, consumer electronics |
17
-
18
-- **Powering**: ECMs need a bias voltage to function, whereas the MAX9812 and ICS-41434 use internal power supplies (usually lower voltage).
19
-- **Signal Output**: ECMs give an analog output that often requires additional processing, while the MAX9812 provides analog output with built-in gain control, and the ICS-41434 outputs a digital signal (I2S) directly.
20
-- **Technology**: ECMs use a traditional electret condenser design with a FET, while the MAX9812 is an analog microphone with AGC, and the ICS-41434 uses MEMS technology.
21
-
22
-
23
-
24
-## ref
25
-
26
-- [[LM393-dat]] - [[I2S-dat]]
... ...
\ No newline at end of file