digital stethoscope project

Ongoing

STD digital stethoscope project

License: Public Domain

Mode:

Editors' pick

Cloned from Medi box 1

Update time： 2021-12-10 14:21:24

Creation time： 2021-10-23 15:53:36

Description

digital stethoscope project

Design Drawing

schematic diagram

（ 1 / ）

PCB

（ 1 / ）

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BOM

ID	Name	Designator	Footprint	Quantity
1	7805_Regulator	7805_REGULATOR	TO-220-3_L10.0-W4.5-P2.54-L	1
2	5V_BUZZER	BUZZER1	DIP-BUZZER-12X6	1
3	22pF	C1,C2	CAP-TH_L3.5-W3.0-P2.54-D0.8	2
4	100nF	C3,C4,C7	CAP-TH_BD5.0-P2.00-D0.8-FD	3
5	100nF	C5	RAD-0.2	1
6	330nF	C6	CAP-TH_BD5.0-P2.00-D0.8-FD	1
7	1N4001_Diode	D1	DO-41_BD2.4-L4.7-P8.70-D0.9-RD	1
8	JST_2 PIN	JST_2_PIN	CONN-TH_XHB-2A	1
9	JST_4 PIN	JST_4_PIN	JST_XH_4_PIN_TOP_ENTRY	1
10	JST_5 PIN	JST_5_PIN	JST 2.54MM MALE 5 PIN CONNECTOR	1
11	JST_6 PIN	JST_6_PIN	JST 2.54MM MALE 6 PIN CONNECTOR_N	1
12	Push_Button	KEY1	KEY-TH_4P-L6.0-W6.0-P4.50	1
13	LED 1	LED1	5MM LED	1
14	LED 2	LED2	5MM LED	1
15	Header-Female-2.54_1x3	P1	HDR-TH_3P-P2.54-V-F	1
16	BC547B_NPN_Transistor	Q1	TO-92-3_L4.9-W3.7-P1.27-L	1
17	10k	R1,R2	AXIAL-0.4	2
18	330	R3	AXIAL-0.4	1
19	220	R4	AXIAL-0.4	1
20	ATMEGA _328P-PU	U1	DIP-28_L34.6-W7.3-P2.54-LS10.2-BL	1
21	HC-06 BLUETOOTH	U3	HC-06	1
22	16MHz	XTAL1	16MHZ_OSC [PCB]	1