21 Bands Audio Spectrum Analyzer - Simple

Completed

STD 21 Bands Audio Spectrum Analyzer - Simple

Arduino

Audio

License: Public Domain

Mode:

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Update time： 2024-10-27 16:29:19

Creation time： 2023-07-04 00:35:57

Description

Simple design version with optional Bluetooth and 2x 3watts Audio Amp. This is using the ESP32D-38pin and 3x MSGEQ7 spectrum analyzer clocked externally using an Adafruit_Si5351. The display panel can be made independently of 21 strips with 20 leds on each strip. To upload the Sketch, run 'flash_download_tool_3.9.7' and upload the BIN file at hex 0x0 .. Wasted Love - YouTube

Design Drawing

schematic diagram

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SCH - 21 Bands Audio Analyzer - Simple
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PCB

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PCB - 21 Bands Audio Analyzer - Simple
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	PZ254-1-04-Z-8.5	ANT	HDR-TH_4P-P2.54-V-M	1
2	10kΩ	BRIGHT,LEFT,PEAK,RIGHT,SENSI	RES-TH_RK09K1110A0J	5
3	10nF	C1,C4,C7	CAP-TH_L5.0-W2.5-P5.08-D0.7	3
4	100nF	C2,C3,C5,C6,C8,C9,C10	CAP-TH_L5.0-W2.5-P5.08-D0.7	7
5	220uF	C11,C14,C15	CAP-TH_BD6.3-P2.50-D1.0-FD	3
6	10uF	C12,C13	CAP-TH_BD5.0-P2.00-D0.8-FD	2
7	33pF	C17	CAP-TH_L5.0-W2.5-P5.08-D0.7	1
8	47uF	C19	CAP-TH_BD6.3-P2.50-D1.0-FD	1
9	DC-470-2.1GP	DC-IN	CON_DC-JACK_TH	1
10	ESP32-DEV 38PIN	ESP32D	ESP32-38PIN-DEVBOARD	1
11	PZ254V-11-05P	H1	HDR-TH_5P-P2.54-V-M	1
12	PJ-3200	J1,J2	AUDIO-TH_PJ-3200	2
13	TY381-3.5-03P-14-00AH	LEDS,LOGO	CONN-TH_3P-P3.50_TOPONELEC_TY381-3.5-03P-14-00AH	2
14	M18 BT Audio IN	M18	M18 BLUETOOTH RECEIVER	1
15	MY_MINI560_DC-DC	MINI560	MINI560	1
16	TS-1093C-A165B2-D1	MODE	SW-TH_TS-1093C-A165B2-D1	1
17	54102-T0600LF	ON,RESET	HDR-TH_2P-P2.54-V-M-R2-C1-S2.54	2
18	KKTL-PAM8403	PAM	KKTL-PAM8403	1
19	10K	R1,R2	RES-TH_BD1.9-L3.3-P7.30-D0.5	2
20	470	R3,R4	RES-TH_BD1.9-L3.3-P7.30-D0.5	2
21	51K	R5	RES-TH_BD1.9-L3.3-P7.30-D0.5	1
22	33K	R6	RES-TH_BD1.7-L3.5-P7.50-D0.5	1
23	9.1K	R7	RES-TH_BD1.9-L3.3-P7.30-D0.5	1
24	0Ω	R8	RES-TH_BD1.8-L3.2-P7.20-D0.4	1
25	200K	R9	RES-TH_BD1.8-L3.2-P7.20-D0.4	1
26	MOD si5351	SI5351	MOD SI5351	1
27	MKDS1/2-3.5	SPKR-L,SPKR-R	CONN-TH_MKDS1-2-3.5	2
28	TP-33103	SW	SW-TH_ROCPU_TP-33103	1
29	MSGEQ7DIL	U1,U2,U3	DIL-08	3

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Project Attachments

Order	File name	Download times
1	21_bands_analyzer.bin	47
2	Board Assembled.jpg	38
3	20230514_140834.jpg	34
4	Panel.jpg	38
5	Part List.jpg	29
6	Panel with PCBs.PNG	27
7	Gerber_21 Bands Audio Analyzer - Simple.zip	21
8	BOM_21 Bands Audio Analyzer - Simple_2023-12-31.csv	19
9	flash_download_tool_3.9.7.exe	3