Chip-cn-dat/Espressif-dat/ESP32-S3-DAT/ESP32-S3-DAT.md
... ...
@@ -5,6 +5,10 @@
5 5
6 6
- [[ESP32-S3-module-DAT]] - [[ESP32-S3-Board-DAT]]
7 7
8
+- [[ESP32-S3-app-DAT]]
9
+
10
+
11
+
8 12
9 13
10 14
## ref
Chip-cn-dat/Espressif-dat/ESP32-S3-DAT/ESP32-S3-app-DAT/ESP32-S3-app-DAT.md
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@@ -5,6 +5,9 @@
5 5
6 6
- [[interface-interactive-dat]]
7 7
8
+- [[ESP32-I2S-dat]]
9
+
10
+
8 11
## ESP-EYE
9 12
10 13
- [[ESP-EYE-dat]]
... ...
@@ -27,8 +30,15 @@ https://github.com/espressif/esp-who/blob/master/docs/en/get-started/ESP32-S3-EY
27 30
28 31
- [[serial-dat]] - [[DVP-camera-dat]]
29 32
33
+- [[dcdc-down-dat]]
34
+
30 35
![](ESP32-S3-AI-CAM.jpg)
31 36
37
+## ethernet and ADC read
38
+
39
+- [[ADC-dat]] - [[W5500-dat]]
40
+
41
+![](ESP32-S3-ethernet-ADC-reader-board.jpg)
32 42
33 43
## ref
34 44
Chip-cn-dat/Espressif-dat/ESP32-S3-DAT/ESP32-S3-app-DAT/ESP32-S3-ethernet-ADC-reader-board.jpg
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Chip-cn-dat/Espressif-dat/Espressif-dat.md
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@@ -11,6 +11,8 @@
11 11
12 12
- [[ESP8685-dat]]
13 13
14
+- [[ESP-SDK-dat]]
15
+
14 16
## Software and SDK
15 17
16 18
- [[ESP-SDK-dat]]
Chip-cn-dat/XL-dat/XL1509-dat/2025-07-10-18-52-23.png
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Chip-cn-dat/XL-dat/XL1509-dat/XL1509-dat.md
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@@ -0,0 +1,12 @@
1
+
2
+# XL1509-dat
3
+
4
+[XL1509 == 2A 150KHz 40V Buck DC to DC Converter](https://www.xlsemi.com/datasheet/XL1509-EN.pdf)
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+
6
+![](2025-07-10-18-52-23.png)
7
+
8
+VDC to VCC and 3.3V
9
+
10
+- [[SB1045-dat]]
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+
12
+- [[power-protection-dat]]
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\ No newline at end of file
Chip-cn-dat/chip-cn-dat.md
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@@ -4,7 +4,7 @@
4 4
- [[chip-dat]]
5 5
6 6
7
-- [[Espressif-dat]] - [[ESP32-dat]] - [[ESP-SDK-dat]]
7
+- [[Espressif-dat]] - [[ESP32-dat]] - [[ESP32-S3-dat]] - [[ESP32-C3-dat]] - [[ESP32-P4-dat]]
8 8
9 9
- [[ESP8266-dat]] - [[esp8266-modules-dat]]
10 10
Chip-dat/TI-dat/TI-Signal-dat/LM224-dat/2025-07-10-18-45-24.png
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Chip-dat/TI-dat/TI-Signal-dat/LM224-dat/LM224-dat.md
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@@ -0,0 +1,16 @@
1
+
2
+# LM224-dat
3
+
4
+[LM124, LM224x, LM324x == Low-power quad operational amplifiers](https://www.st.com/resource/en/datasheet/lm224a.pdf)
5
+
6
+![](2025-07-10-18-45-24.png)
7
+
8
+## How the LM224 works:
9
+
10
+- It contains four independent op-amps in a single package.
11
+- Each op-amp amplifies the voltage difference between its two input pins (inverting and non-inverting).
12
+- It is designed for single or dual power supply operation, making it versatile for many analog signal processing tasks.
13
+- Typical uses include signal amplification, filtering, and mathematical operations (summing, integration, etc.).
14
+- The LM224 is optimized for low power consumption and can operate from a wide range of supply voltages.
15
+
16
+
Chip-dat/wiznet-dat/W5500-dat/2025-07-10-18-48-48.png
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Chip-dat/wiznet-dat/W5500-dat/W5500-dat.md
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@@ -0,0 +1,19 @@
1
+
2
+# W5500-dat
3
+
4
+W5500 Datasheet
5
+
6
+The W5500 chip is a Hardwired TCP/IP embedded Ethernet controller that provides easier Internet connection to embedded systems. W5500 enables users to have the Internet connectivity in their applications just by using the single chip in which TCP/IP stack, 10/100 Ethernet MAC and PHY embedded.
7
+
8
+- datasheet == [[W5500_datasheet_v1.0.2_1.pdf]]
9
+
10
+## SCH
11
+
12
+![](2025-07-10-18-48-48.png)
13
+
14
+- HY951180A
15
+
16
+
17
+## ref
18
+
19
+- [[TCPIP-dat]] - [[UDP-dat]] - [[ethernet-dat]]
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\ No newline at end of file
Chip-dat/wiznet-dat/W5500-dat/W5500_datasheet_v1.0.2_1.pdf
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Chip-dat/wiznet-dat/wiznet-dat.md
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@@ -0,0 +1,4 @@
1
+
2
+# wiznet-dat
3
+
4
+- [[W5500-dat]] - [[W5100-dat]]
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\ No newline at end of file
Circuits-dat/protection-dat/power-protection-dat/2025-07-10-18-53-28.png
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Circuits-dat/protection-dat/power-protection-dat/power-protection-dat.md
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@@ -6,6 +6,31 @@
6 6
7 7
- [[power-protection-Vmotor-dat]]
8 8
9
+- inrush + anti-reverse protection
10
+
11
+
12
+## Input protection
13
+
14
+![](2025-07-10-18-53-28.png)
15
+
16
+- [[SB1045-dat]] - [[sensor-NTC-dat]] == NTC10D-11
17
+
18
+- [[sensor-dat]]
19
+
20
+The input protection circuit uses two main components:
21
+
22
+- **NTC10D-11 (NTC Thermistor):**
23
+ When power is first applied, this thermistor has a high resistance, which limits the inrush current to downstream components (such as large capacitors or sensitive ICs). As it heats up from current flow, its resistance drops, allowing normal operation with minimal voltage drop.
24
+
25
+- **SB1045L (Schottky Diode):**
26
+ This diode is oriented to allow current to flow only in the correct direction. If the power supply is connected in reverse, the diode blocks the current, preventing damage to the rest of the circuit.
27
+
28
+**Summary:**
29
+- The NTC thermistor protects against inrush current at power-on.
30
+- The Schottky diode protects against reverse polarity.
31
+- Together, they ensure only safe, properly oriented power reaches the back end of the circuit.
32
+
33
+
9 34
## reverse-votlage-protection
10 35
11 36
![](2025-03-24-19-39-56.png)
Tech-dat/ADC-dat/2025-07-10-18-43-18.png
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Tech-dat/ADC-dat/ADC-dat.md
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@@ -51,6 +51,13 @@
51 51
52 52
![](2025-07-09-18-39-12.png)
53 53
54
+### 4x ADC reader
55
+
56
+![](2025-07-10-18-43-18.png)
57
+
58
+- [[LM224-dat]] - [[TI-signal-dat]]
59
+
60
+- [[BAT54S-dat]]
54 61
55 62
## ref
56 63
Tech-dat/Network-dat/ethernet-dat/ethernet-dat.md
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@@ -6,6 +6,7 @@
6 6
- [[PHY-dat]]
7 7
8 8
9
+
9 10
## chip
10 11
11 12
- [[W5500-dat]] - [[ENC28J60-dat]]
... ...
@@ -22,8 +23,8 @@
22 23
23 24
RJ-45
24 25
26
+HY951180A
25 27
HY931147C
26
-
27 28
HR931130A
28 29
29 30
![](2023-11-30-15-43-51.png)
Tech-dat/Sensor-dat/sensor-temperature-dat/sensor-NTC-dat/sensor-NTC-dat.md
... ...
@@ -0,0 +1,13 @@
1
+
2
+# NTC-sensor-dat
3
+
4
+- NTC10D-11
5
+
6
+- Type: Negative Temperature Coefficient (NTC) Thermistor
7
+- Resistance: 10 kΩ at 25°C
8
+- B Value: ~3435 K (typical)
9
+- Max Voltage: 250V AC
10
+- Max Current: 2.5A
11
+- Operating Temperature: −40°C to +125°C
12
+- Tolerance: ±5% (at 25°C)
13
+- Application: Inrush current limiter, temperature sensing
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\ No newline at end of file
Tech-dat/Sensor-dat/sensor-temperature-dat/temperature-sensor-dat.md
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@@ -0,0 +1,27 @@
1
+
2
+# temperature-sensor-dat
3
+
4
+- [[STH-dat]]
5
+
6
+- [[STH1040-dat]] - [[STH1046-dat]] - [[STH1071-dat]]
7
+
8
+- [[aosong-dat]]
9
+
10
+- [[LM75-dat]] - [[STH1071-dat]]
11
+
12
+- [[sensirion-dat]] - [[SHT4x-dat]]
13
+
14
+- [[microphone-sensor-dat]] - [[Electret-Condenser-Microphone-dat]]
15
+
16
+- [[BMP280-dat]]
17
+
18
+- [[NTC-sensor-dat]]
19
+
20
+## common use
21
+
22
+- mini size: [[AHT20-dat]] - [[SHT4x-dat]] - [[SHT30-dat]]
23
+
24
+
25
+## wireless measurement
26
+
27
+- [[STH1065-dat]]
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\ No newline at end of file
Tech-dat/Sensor-dat/temperature-sensor-dat/NTC-sensor-dat/NTC-sensor-dat.md
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@@ -1,3 +0,0 @@
1
-
2
-# NTC-sensor-dat
3
-
Tech-dat/Sensor-dat/temperature-sensor-dat/temperature-sensor-dat.md
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@@ -1,27 +0,0 @@
1
-
2
-# temperature-sensor-dat
3
-
4
-- [[STH-dat]]
5
-
6
-- [[STH1040-dat]] - [[STH1046-dat]] - [[STH1071-dat]]
7
-
8
-- [[aosong-dat]]
9
-
10
-- [[LM75-dat]] - [[STH1071-dat]]
11
-
12
-- [[sensirion-dat]] - [[SHT4x-dat]]
13
-
14
-- [[microphone-sensor-dat]] - [[Electret-Condenser-Microphone-dat]]
15
-
16
-- [[BMP280-dat]]
17
-
18
-- [[NTC-sensor-dat]]
19
-
20
-## common use
21
-
22
-- mini size: [[AHT20-dat]] - [[SHT4x-dat]] - [[SHT30-dat]]
23
-
24
-
25
-## wireless measurement
26
-
27
-- [[STH1065-dat]]
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\ No newline at end of file