Multi-channel LED controller, 12V 1A per channel, 1500Hz PWM, RS485/Bluetooth control copy

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STD Multi-channel LED controller, 12V 1A per channel, 1500Hz PWM, RS485/Bluetooth control copy

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Cloned from Multi-channel LED controller, 12V 1A per channel, 1500Hz PWM, RS485/Bluetooth control

Update time： 2019-10-28 10:39:37

Creation time： 2019-10-28 10:39:34

Description

Universal board for LED control. - Atmega8/328 on board with programming connector - PCA9685 for 16 channel PWM up to 1.5kHz (eye-safe frequency), 12 bits per channel - cheap ULN2003 with paired outputs for 1A per channel (2-3 meters of RGB 5050 strip per connector) - or SOT23 MOSFETs if you need more power - BT05 bluetooth module or MAX485, control by wire or wireless. DMX512 is possible. - pads for unused Atmega ports, I2C, RX-TX - Music spectrum analyser MSGEQ7 on board - 3 user-defined buttons, RESET button, 4 status LEDs, 4 user-defined LEDs on board - Most parts are optional, solder what you need Now, rev 1.0 board is manufactured, partially tested and operable: - Power connector and 12V to 5V conversion - Atmega8 with 16MHz crystal, ISP connector - PWM, ULN2003 outputs - Onboard LED indication - RS485, with PC via USB-RS485 adapter, also tested as DMX-512 slave device - MSGEQ7 is operable, but results with microphone are not very good. Minor bugs found: - RS485 indication is inverted in the initial revision - RS485 A and B silk marks should be swapped (A is B, B is A).

Design Drawing

schematic diagram

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Controller copy
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ULN2003 Module copy
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MSGEQ7 copy
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Indication copy
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FETs copy
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PCB

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ULN2003_PCB copy
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity	Mounted
1	ATMEGA8 / 328	U1	TQFP-32_7X7X08P	1	Yes	C16190
2	MAX485CSA+	MAX485	SOIC-8_150MIL	1	Yes	C143494
3	1uF	C1,C2,C-485,C3-1	0805	4	Yes	C85865
4	RS485	J1	HDR-1X2/2.54	1	Yes	C49661
5	CRYSTAL	QZ1	CRYSTAL_HC49S	1	Yes
6	15-22pF	C1-2,C1-1	0805	2	Yes	C90626
7	AVR-ISP	ISP1	AVRISP	1	Yes
8	10K	R1-12,R1-11,R1-6,R1-7,R1-10,R1-3,R1-4,R1-5,R3-1	0805	9	Yes	C144127
9	0.1uF	C-MEGA,C-RST,C-AREF,C3-2	0805	4	Yes	C85865
10	RESET	SW_RESET	DIP TACT SWITCH BUTTON 6X6X2MM.	1	Yes	C10889
11	Bluetooth	HC05/HM1	BLUETOOTH HC05 HM10	1	Yes
12	10KΩ(103)	R1-9	0805	1	Yes	C144127
13	4.7KΩ(472)	R1-8	0805	1	Yes	C105427
14	1000uF	C3	CAP-D10.0XF5.0	1	Yes	C10750
15	330	R1-1,R1-2	0805	2	Yes	C104349
16	2.54_1x4	I2C	HDR-4X1/2.54	1	Yes	C124413
17	LM7805	U2	TO-220	1	Yes
18	JUMPER	SJ9,SJ10,SJ1,SJ2,SJ3	SJ_2S	5	Yes
19	PortD	PORT-D	HDR-6X1/2.54	1	Yes	C40877
20	5V	5V	HDR-1X2/2.54	1	Yes	C49661
21	1N4004	D1	DO-41	1	Yes	C169151
22	RS485	J2	TERMINAL BLOCK 2 3.5MM	1	Yes	220-4260
23	Header-Female-2.54_1x4	POWER	HDR-4X1/2.54	1	Yes	C124413
24	PWR2.5	PWR2	DC-5.5*2.1MM	1	Yes
25	ULN2003	ULN1,ULN2,ULN3,ULN4,ULN5	SOIC-16_150MIL	5	Yes	C61273
26	0.5uF	C-PCA	0805	1	Yes	C85865
27	Header-2.54_1x4	RGB1,RGB2,RGB3,RGB4,RGB5	HDR-4X1/2.54	5	Yes	C124413
28	Header-2.54_2x4	RGBW1,RGBW2,RGBW3,RGBW4	HDR-4X2/2.54	4	Yes	C124386
29	(0)	R4-1,R4-2,R4-3,R4-4,R4-5,R4-6,R4-7,R4-8,R4-9,R4-10,R4-11,R4-12,R4-13,R4-14,R4-15,R4-16	0805	16	Yes	C103900
30	SOLDERJUMPER_2WAYS	ADR1,ADR0,ADR2,ADR3,ADR4	SJ_3	5	Yes
31	PCA9685	U3	TSSOP-28	1	Yes	C92206
32	MSGEQ7	U4	DIP-8	1	Yes	C46749
33	200KΩ	R3-2	0805	1	Yes	C139906
34	33pF	C3-4	0805	1	Yes	C107115
35	10nF	C3-3	0805	1	Yes	C129640
36	Header-2.54-1x3	AUDIO2	HDR-3X1/2.54	1	Yes	C49257
37	PJ-320B	AUDIO1	PJ-320B	1	Yes	C18594
38	22K	R3-3,R3-4	0805	2	Yes	C104117
39	100	R3-5	0805	1	Yes	C139906
40	500K	R3-6	0805	1	Yes	C139906
41	RGB-CommonAnode	LED1	RGB-5MM	1	Yes	C32985
42	Tact button	SW1,SW2,SW3	DIP TACT SWITCH BUTTON 6X6X2MM.	3	Yes	C10889
43	47K	R2-5,R2-3,R2-1	0805	3	Yes	C144127
44	1K	R2-11,R2-12,R2-13,R2-14,R2-7,R2-8,R2-9,R2-10,R2-2	0805	9	Yes	C163966
45	USER1	LED_U1	CHIPLED_0805	1	Yes
46	USER2	LED_U2	CHIPLED_0805	1	Yes
47	USER3	LED_U3	CHIPLED_0805	1	Yes
48	USER4	LED_U4	CHIPLED_0805	1	Yes
49	PWR	LED_PWR	CHIPLED_0805	1	Yes
50	RX	LED_RX	CHIPLED_0805	1	Yes
51	TX	LED_TX	CHIPLED_0805	1	Yes
52	I2C	LED_I2C,LED_RW	CHIPLED_0805	2	Yes
53	100Ω	R5-1,R5-3,R5-5,R5-7,R5-9,R5-11,R5-13,R5-15,R5-17,R5-19,R5-21,R5-23,R5-25,R5-27,R5-29,R5-31	0805	16	Yes	C25277
54	10KΩ	R5-2,R5-4,R5-6,R5-8,R5-10,R5-12,R5-14,R5-16,R5-18,R5-20,R5-22,R5-24,R5-26,R5-28,R5-30,R5-32	0805	16	Yes	C113193
55	AO3400	Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,Q13,Q14,Q15,Q16	SOT-23(SOT-23-3)	16	Yes	C20917