Bluetooth RGB led controller

Ongoing

STD Bluetooth RGB led controller

Bluetooth/mesh

License: CERN Open Hardware License

Mode:

Editors' pick

Update time： 2022-04-01 09:58:11

Creation time： 2017-08-21 06:55:11

Description

One of older projects imported from Eagle. It has three 18650 cells onboard and can charge them. Relays are needed for switching cells in parallel for charging or in serial to give 10-12 volts for LED strip. Although USB connector used, it needs about 7,5 volts for success charging due to used LM3177 voltage drop. Project was made and tested from Eagle, but imported to EasyEDA without any tests. See [video][1] of how it's working. If you want to replicate this device ask me for firmware maybe i will find them. [1]: https://vk.com/video197748989_456239027

Design Drawing

schematic diagram

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PCB

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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	C-EU	C1,C2,C3,C4,C5,C7,C6,C8,C9,C10,C11,C12	C0805	12
2	LM317?*	IC1,IC2,IC3	DPACK	3
3	TL431	IO1,IO2,IO3	SOT23	3
4	R-EU_	R1,R4,R5,R8,R2,R3,R6,R7,R9,R10,R11,R12,R13,R14	R0805	14
5	FTR-B4	K1,K2,K3	FTR-B4G	3
6	BATTERY_18650_TRIPLE	U$1	BATTERY_18650_TRIPLE	1
7	MINI-USB-	X1	32005-201	1
8	STM32F030F4	U$2,U$7,U$10,U$13	TSSOP20	4
9	ULN2003A	IC4,IC5,IC6,IC7	SO16	4
10	53?-04	X2,X3,X4,X5,X6,X7,X8,X10,X11,X12,X13	53047-04	11
11	53047-04	X9	53047-04	1
12	HC_05	U1	BLUETOOTH_SMD	1
13	LD117A?*	IC8	SOT223	1
14	CPOL-EU	C13	D7343-31R	1
15	SWITCH-SPDT	S2	SWITCH-SPDT_KIT	1
16	PINHD-1X3	JP1	1X0390	1
17	LED	LED1,LED2	CHIPLED_0805	2
18	BAT54	D1,D3,D2	SOT23	3