BOM-DAT/inductor-dat/inductor-dat.md
... ...
@@ -29,6 +29,9 @@
29 29
30 30
## footprint
31 31
32
+- OP 1040 == 10.0x10.0mm
33
+- OP 0630 == 7.4 x 6.6 mm
34
+
32 35
- SWRH1207
33 36
- SWRB1204
34 37
- CDRH127
... ...
@@ -36,7 +39,11 @@
36 39
- CDRH74R
37 40
- CDRH4D28
38 41
- CD43
39
-- CD105
42
+- CD105
43
+- CD75 = 7.8 x 7.0 == OP 0630
44
+
45
+
46
+
40 47
- SWPA6045
41 48
- SWPA5040
42 49
- SWPA4030
Chip-cn-dat/Espressif-dat/ESP32-S3-DAT/ESP32-S3-DAT.md
... ...
@@ -9,7 +9,7 @@
9 9
10 10
- [[ESP32-S3-module-DAT]] - [[ESP32-S3-WROOM-1-dat]] - [[ESP32-S3-board-dat]]
11 11
12
-
12
+- [[ESP32-S3-app-DAT]]
13 13
14 14
15 15
Chip-cn-dat/Espressif-dat/ESP32-S3-DAT/ESP32-S3-app-DAT/ESP32-S3-app-DAT.md
... ...
@@ -5,7 +5,7 @@
5 5
6 6
- [[interface-interactive-dat]]
7 7
8
-- [[ESP32-I2S-dat]]
8
+- [[ESP32-I2S-dat]] - [[ESP32-S3-dat]]
9 9
10 10
11 11
Chip-cn-dat/ZILLTEK-dat/2026-03-02-16-52-46.png
... ...
Binary files /dev/null and b/Chip-cn-dat/ZILLTEK-dat/2026-03-02-16-52-46.png differ
Chip-cn-dat/ZILLTEK-dat/ZILLTEK-dat.md
... ...
@@ -0,0 +1,11 @@
1
+
2
+
3
+# ZILLTEK-dat
4
+
5
+- [[mems-dat]] - [[zilltek-dat]]
6
+
7
+- [[I2S-dat]]
8
+
9
+MSM261DGT003
10
+
11
+![](2026-03-02-16-52-46.png)
... ...
\ No newline at end of file
Chip-cn-dat/mems-dat/2026-03-02-16-56-12.png
... ...
Binary files /dev/null and b/Chip-cn-dat/mems-dat/2026-03-02-16-56-12.png differ
Chip-cn-dat/mems-dat/MSM261S4030H0R-dat/MSM261S4030H0R-dat.md
... ...
@@ -1,5 +1,10 @@
1 1
2
-# MSM261S4030H0R-dat
2
+#
3
+
4
+
5
+
6
+
7
+- [[sensor-microphone-I2S-dat]] - [[sensor-microphone-I2S]]
3 8
4 9
MSM261S4030H0R
5 10
Chip-cn-dat/mems-dat/mems-dat.md
... ...
@@ -1,4 +1,13 @@
1 1
2 2
# mems-dat
3 3
4
-MEMS(敏芯微)
... ...
\ No newline at end of file
0
+MEMS(敏芯微)
1
+
2
+
3
+- [[mems-dat]] - [[zilltek-dat]]
4
+
5
+- [[MSM261S4030H0R-dat]]
6
+
7
+MSM2613526H1CPM SCH
8
+
9
+![](2026-03-02-16-56-12.png)
... ...
\ No newline at end of file
Chip-dat/Nordic-dat/NRF5x-dat/NRF52840-dat/arduino-nano-33-ble-dat/arduino-nano-33-ble-dat.md
... ...
@@ -13,7 +13,7 @@ https://store.arduino.cc/products/arduino-nano-33-ble
13 13
14 14
- [[MPM3610-dat]] - [[dcdc-down-dat]] - [[MPS-dat]]
15 15
16
-- [[MP34DT06JTR-dat]] - [[sensor-microphone-dat]] - [[st-sensor-dat]] - [[I2S-microphone]]
16
+- [[MP34DT06JTR-dat]] - [[sensor-microphone-dat]] - [[st-sensor-dat]] - [[sensor-microphone-I2S]]
17 17
18 18
- [[ESD-dat]] - [[USB-ESD-dat]]
19 19
Tech-dat/Interface-dat/I2S-dat/I2S-dat.md
... ...
@@ -13,6 +13,7 @@
13 13
14 14
- [[sensor-dat]]
15 15
16
+- [[ESP32-S3-dat]]
16 17
17 18
18 19
## info
... ...
@@ -29,7 +30,22 @@ This makes I2S a popular choice for high-speed data transfer applications.
29 30
30 31
31 32
33
+### 1. Pin Mapping Logic
32 34
35
+To get this working, you simply need to map your microphone's pins to the ESP32’s I2S peripheral. Here is how they correspond:
36
+
37
+| Microphone Label | I2S Standard Name | ESP32 Function | Role |
38
+| :--- | :--- | :--- | :--- |
39
+| **CLK** (or BCLK) | **SCK** (Bit Clock) | Output | The heartbeat that times every individual bit. |
40
+| **L/R** (or WS) | **WS** (Word Select) | Output | Toggles to define the start of Left/Right frames. |
41
+| **DATA** (or SD) | **SDIN** (Data In) | Input | The digital audio stream entering the ESP32. |
42
+
43
+
44
+### 2. Why "MCLK" is Missing
45
+
46
+If you are looking at ESP32 documentation, you might see a fourth signal called **MCLK (Master Clock)**.
47
+* **The Good News:** Most I2S MEMS microphones (like the INMP441 or SPH0645) do **not** require an MCLK signal. They derive their internal timing directly from the Bit Clock (CLK).
48
+* **The Setup:** You can simply leave the MCLK configuration in your code as "unused" or -1.
33 49
34 50
35 51
Tech-dat/Interface-dat/I2S-dat/I2S-microphone-dat/2025-01-06-14-07-17.png
... ...
Binary files a/Tech-dat/Interface-dat/I2S-dat/I2S-microphone-dat/2025-01-06-14-07-17.png and /dev/null differ
Tech-dat/Interface-dat/I2S-dat/I2S-microphone-dat/2026-02-10-17-43-37.png
... ...
Binary files a/Tech-dat/Interface-dat/I2S-dat/I2S-microphone-dat/2026-02-10-17-43-37.png and /dev/null differ
Tech-dat/Interface-dat/I2S-dat/I2S-microphone-dat/2026-02-10-17-44-36.png
... ...
Binary files a/Tech-dat/Interface-dat/I2S-dat/I2S-microphone-dat/2026-02-10-17-44-36.png and /dev/null differ
Tech-dat/Interface-dat/I2S-dat/I2S-microphone-dat/I2S-microphone-dat.md
... ...
@@ -1,160 +0,0 @@
1
-
2
-# I2S-microphone-dat
3
-
4
-
5
-
6
-- [[I2S-microphone-dat]] - [[buzzer-mems-dat]] - [[sensor-mems-dat]]
7
-
8
-
9
-
10
-- [[ADMP404-dat]] - [[analog-device-dat]]
11
-
12
-
13
-I2S Output Digital Microphone - [[INMP441-dat]] - [[MSM261S4030H0R-dat]]
14
-
15
-- [[ICS-43432-dat]] - [[ICS-43434-dat]]
16
-
17
-- [[SPH0645-dat]]
18
-
19
-
20
-
21
-
22
-
23
-- [[INMP441-dat]]
24
-
25
-![](2025-01-06-14-07-17.png)
26
-
27
-
28
-- [[MP34DT06JTR-dat]] - [[sensor-microphone-dat]] - [[st-sensor-dat]] - [[I2S-microphone]]
29
-
30
-MEMS audio sensor omnidirectional digital microphone
31
-
32
-https://www.st.com/resource/en/datasheet/mp34dt06j.pdf
33
-
34
-![](2026-02-10-17-43-37.png)
35
-
36
-![](2026-02-10-17-44-36.png)
37
-
38
-
39
-
40
-## Common pins
41
-
42
-
43
-| model | L/R | WS | SD | SCK |
44
-| ---------------------- | ---------- | ---------------- | ---- | ----- |
45
-| explain | left/right | data-word select | DATA | clock |
46
-| [[INMP441-dat]] | yes | yes | yes | yes |
47
-| [[ICS-43434-dat]] | yes | yes | yes | yes |
48
-| [[MSM261S4030H0R-dat]] | yes | yes | yes | yes |
49
-| [[SPH0645-dat]] | yes | yes | yes | yes |
50
-
51
-
52
-## wiring reference
53
-
54
-| Signal | Connection |
55
-| ------ | ----------------------------------------------- |
56
-| SEL | unconnected (only one channel, apparently left) |
57
-| LRCL | #15 |
58
-| DOUT | #32 |
59
-| BCKL | #14 |
60
-| GND | GND |
61
-| 3V | 3V |
62
-
63
-
64
-## go advance
65
-
66
-- simultaneous data = microphones with **TDM (Time-Division Multiplexing)**
67
-
68
-
69
-
70
-
71
-## demo code for interleaved data
72
-
73
- #include <driver/i2s.h>
74
-
75
- // I2S configuration
76
- #define I2S_NUM I2S_NUM_0 // I2S port number
77
- #define SAMPLE_RATE 16000 // Sampling rate in Hz
78
- #define I2S_BCK_PIN 26 // Bit clock pin (SCK)
79
- #define I2S_WS_PIN 25 // Word select pin (WS/LRCLK)
80
- #define I2S_DATA_PIN 22 // Serial data pin (SD)
81
-
82
- #define BUFFER_SIZE 1024 // Buffer size for audio data
83
-
84
- void setup() {
85
- Serial.begin(115200);
86
-
87
- // Configure I2S
88
- i2s_config_t i2s_config = {
89
- .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_RX), // Master receive mode
90
- .sample_rate = SAMPLE_RATE,
91
- .bits_per_sample = I2S_BITS_PER_SAMPLE_32BIT, // 32-bit data
92
- .channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, // Stereo format
93
- .communication_format = I2S_COMM_FORMAT_I2S,
94
- .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1, // Interrupt level 1
95
- .dma_buf_count = 4, // Number of DMA buffers
96
- .dma_buf_len = BUFFER_SIZE // DMA buffer size
97
- };
98
-
99
- // Configure I2S pins
100
- i2s_pin_config_t pin_config = {
101
- .bck_io_num = I2S_BCK_PIN,
102
- .ws_io_num = I2S_WS_PIN,
103
- .data_out_num = I2S_PIN_NO_CHANGE,
104
- .data_in_num = I2S_DATA_PIN
105
- };
106
-
107
- // Install and start I2S
108
- i2s_driver_install(I2S_NUM, &i2s_config, 0, NULL);
109
- i2s_set_pin(I2S_NUM, &pin_config);
110
- i2s_zero_dma_buffer(I2S_NUM);
111
-
112
- Serial.println("I2S initialized!");
113
- }
114
-
115
- void loop() {
116
- int32_t i2s_buffer[BUFFER_SIZE]; // Buffer for interleaved audio data
117
- size_t bytes_read;
118
-
119
- // Read data from I2S
120
- i2s_read(I2S_NUM, i2s_buffer, sizeof(i2s_buffer), &bytes_read, portMAX_DELAY);
121
-
122
- // Process interleaved data
123
- size_t samples_read = bytes_read / sizeof(int32_t);
124
- for (size_t i = 0; i < samples_read; i += 2) {
125
- int32_t left_channel = i2s_buffer[i]; // Left channel (Microphone 1)
126
- int32_t right_channel = i2s_buffer[i+1]; // Right channel (Microphone 2)
127
-
128
- // Print the audio data for debugging
129
- Serial.print("Left: ");
130
- Serial.print(left_channel);
131
- Serial.print(" | Right: ");
132
- Serial.println(right_channel);
133
- }
134
- }
135
-
136
-
137
-## Other Pick
138
-
139
-LMD2718T261-OA1
140
-
141
-
142
-## Types
143
-
144
-5P
145
-
146
-ICS-43434 - 5P
147
-
148
-8P
149
-
150
-WMM7040DTHN0-8/TR = WMM7040DTHN0-8/TR
151
-
152
-LGA8
153
-
154
-
155
-
156
-## ref
157
-
158
-- [[sensor-microphone-dat]]
159
-
160
-- [[I2S-dat]] - [[I2S-microphone]] - [[I2S]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-microphone-dat/Analog-microphone-dat/Analog-microphone-dat.md
... ...
@@ -1,8 +0,0 @@
1
-
2
-# Analog-microphone-dat
3
-
4
-- [[MAX9812-dat]]
5
-
6
-- [[Electret-Condenser-Microphone-dat]]
7
-
8
-- [[audio-dat]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-microphone-dat/microphone-Analog-dat/2026-03-02-16-45-11.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-microphone-dat/microphone-Analog-dat/2026-03-02-16-45-11.png differ
Tech-dat/Sensor-dat/sensor-microphone-dat/microphone-Analog-dat/microphone-Analog-dat.md
... ...
@@ -0,0 +1,27 @@
1
+
2
+# microphone-Analog-dat
3
+
4
+- [[MAX9812-dat]]
5
+
6
+- [[Electret-Condenser-Microphone-dat]]
7
+
8
+- [[audio-dat]]
9
+
10
+
11
+
12
+
13
+## analog
14
+
15
+ZTS6216 - Ultralow Noise Microphone with Top Port and Analog Output
16
+
17
+![](2026-03-02-16-45-11.png)
18
+
19
+
20
+## ref
21
+
22
+- [[sensor-microphone-dat]]
23
+
24
+
25
+
26
+
27
+
Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-I2S-dat/2025-01-06-14-07-17.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-I2S-dat/2025-01-06-14-07-17.png differ
Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-I2S-dat/2026-02-10-17-43-37.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-I2S-dat/2026-02-10-17-43-37.png differ
Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-I2S-dat/2026-02-10-17-44-36.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-I2S-dat/2026-02-10-17-44-36.png differ
Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-I2S-dat/sensor-microphone-I2S-dat.md
... ...
@@ -0,0 +1,165 @@
1
+
2
+# sensor-microphone-I2S-dat
3
+
4
+
5
+
6
+- [[sensor-microphone-I2S-dat]] - [[sensor-mems-dat]]
7
+
8
+- [[buzzer-mems-dat]]
9
+
10
+- [[ADMP404-dat]] - [[analog-device-dat]]
11
+
12
+
13
+I2S Output Digital Microphone - [[INMP441-dat]]
14
+
15
+- [[mems-dat]] - [[zilltek-dat]]
16
+
17
+- [[MSM261S4030H0R-dat]]
18
+
19
+
20
+- [[ICS-43432-dat]] - [[ICS-43434-dat]]
21
+
22
+- [[SPH0645-dat]]
23
+
24
+
25
+
26
+
27
+
28
+- [[INMP441-dat]]
29
+
30
+![](2025-01-06-14-07-17.png)
31
+
32
+
33
+- [[MP34DT06JTR-dat]] - [[sensor-microphone-dat]] - [[st-sensor-dat]] - [[I2S-microphone]]
34
+
35
+MEMS audio sensor omnidirectional digital microphone
36
+
37
+https://www.st.com/resource/en/datasheet/mp34dt06j.pdf
38
+
39
+![](2026-02-10-17-43-37.png)
40
+
41
+![](2026-02-10-17-44-36.png)
42
+
43
+
44
+
45
+## Common pins
46
+
47
+
48
+| model | L/R | WS | SD | SCK |
49
+| ---------------------- | ---------- | ---------------- | ---- | ----- |
50
+| explain | left/right | data-word select | DATA | clock |
51
+| [[INMP441-dat]] | yes | yes | yes | yes |
52
+| [[ICS-43434-dat]] | yes | yes | yes | yes |
53
+| [[MSM261S4030H0R-dat]] | yes | yes | yes | yes |
54
+| [[SPH0645-dat]] | yes | yes | yes | yes |
55
+
56
+
57
+## wiring reference
58
+
59
+| Signal | Connection |
60
+| ------ | ----------------------------------------------- |
61
+| SEL | unconnected (only one channel, apparently left) |
62
+| LRCL | #15 |
63
+| DOUT | #32 |
64
+| BCKL | #14 |
65
+| GND | GND |
66
+| 3V | 3V |
67
+
68
+
69
+## go advance
70
+
71
+- simultaneous data = microphones with **TDM (Time-Division Multiplexing)**
72
+
73
+
74
+
75
+
76
+## demo code for interleaved data
77
+
78
+ #include <driver/i2s.h>
79
+
80
+ // I2S configuration
81
+ #define I2S_NUM I2S_NUM_0 // I2S port number
82
+ #define SAMPLE_RATE 16000 // Sampling rate in Hz
83
+ #define I2S_BCK_PIN 26 // Bit clock pin (SCK)
84
+ #define I2S_WS_PIN 25 // Word select pin (WS/LRCLK)
85
+ #define I2S_DATA_PIN 22 // Serial data pin (SD)
86
+
87
+ #define BUFFER_SIZE 1024 // Buffer size for audio data
88
+
89
+ void setup() {
90
+ Serial.begin(115200);
91
+
92
+ // Configure I2S
93
+ i2s_config_t i2s_config = {
94
+ .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_RX), // Master receive mode
95
+ .sample_rate = SAMPLE_RATE,
96
+ .bits_per_sample = I2S_BITS_PER_SAMPLE_32BIT, // 32-bit data
97
+ .channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, // Stereo format
98
+ .communication_format = I2S_COMM_FORMAT_I2S,
99
+ .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1, // Interrupt level 1
100
+ .dma_buf_count = 4, // Number of DMA buffers
101
+ .dma_buf_len = BUFFER_SIZE // DMA buffer size
102
+ };
103
+
104
+ // Configure I2S pins
105
+ i2s_pin_config_t pin_config = {
106
+ .bck_io_num = I2S_BCK_PIN,
107
+ .ws_io_num = I2S_WS_PIN,
108
+ .data_out_num = I2S_PIN_NO_CHANGE,
109
+ .data_in_num = I2S_DATA_PIN
110
+ };
111
+
112
+ // Install and start I2S
113
+ i2s_driver_install(I2S_NUM, &i2s_config, 0, NULL);
114
+ i2s_set_pin(I2S_NUM, &pin_config);
115
+ i2s_zero_dma_buffer(I2S_NUM);
116
+
117
+ Serial.println("I2S initialized!");
118
+ }
119
+
120
+ void loop() {
121
+ int32_t i2s_buffer[BUFFER_SIZE]; // Buffer for interleaved audio data
122
+ size_t bytes_read;
123
+
124
+ // Read data from I2S
125
+ i2s_read(I2S_NUM, i2s_buffer, sizeof(i2s_buffer), &bytes_read, portMAX_DELAY);
126
+
127
+ // Process interleaved data
128
+ size_t samples_read = bytes_read / sizeof(int32_t);
129
+ for (size_t i = 0; i < samples_read; i += 2) {
130
+ int32_t left_channel = i2s_buffer[i]; // Left channel (Microphone 1)
131
+ int32_t right_channel = i2s_buffer[i+1]; // Right channel (Microphone 2)
132
+
133
+ // Print the audio data for debugging
134
+ Serial.print("Left: ");
135
+ Serial.print(left_channel);
136
+ Serial.print(" | Right: ");
137
+ Serial.println(right_channel);
138
+ }
139
+ }
140
+
141
+
142
+## Other Pick
143
+
144
+LMD2718T261-OA1
145
+
146
+
147
+## Types
148
+
149
+5P
150
+
151
+ICS-43434 - 5P
152
+
153
+8P
154
+
155
+WMM7040DTHN0-8/TR = WMM7040DTHN0-8/TR
156
+
157
+LGA8
158
+
159
+
160
+
161
+## ref
162
+
163
+- [[sensor-microphone-dat]]
164
+
165
+- [[I2S-dat]] - [[I2S-microphone]] - [[I2S]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-microphone-dat/sensor-microphone-dat.md
... ...
@@ -1,21 +1,18 @@
1 1
2
-# microphone-sensor-dat
2
+# sensor-microphone-dat
3 3
4
+- [[sensor-microphone-I2S-dat]] - [[microphone-Analog-dat]]
4 5
6
+- [[microphone-Analog-dat]] - [[Electret-Condenser-Microphone-dat]]
5 7
6
-## boards
7
-
8
-- [[SSL1032-dat]]
9
-
8
+- [[sensor-microphone-I2S]]
10 9
11 10
12 11
12
+## boards
13 13
14
-## types
15
-
16
-- [[I2S-microphone-dat]]
14
+- [[SSL1032-dat]]
17 15
18
-- [[Analog-microphone-dat]] - [[Electret-Condenser-Microphone-dat]]
19 16
20 17
| Feature | Electret Condenser Microphone (ECM) | MAX9812 | ICS-41434 |
21 18
| ----------------- | --------------------------------------------- | ---------------------------------------- | ------------------------------------------- |
Tech-dat/peripherals-dat/peripherals-dat.md
... ...
@@ -2,6 +2,15 @@
2 2
# peripherals-dat
3 3
4 4
5
+
6
+
7
+## AI relevant
8
+
9
+- [[camera-dat]] - [[sensor-microphone-dat]]
10
+
11
+## basic
12
+
13
+
5 14
- [[protection-dat]] - [[protection-power-dat]]
6 15
7 16