8-switch-array on Kitspace

8-switch-array

github.com / BeeHive-org | homepage

an array of 8 individually addresseable NPN transistors

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References	Qty	Description	Manufacturer	MPN	Manufacturer	MPN	Manufacturer	MPN	Manufacturer	MPN	Manufacturer	MPN	Digikey	Mouser	RS	Newark	Farnell
U1;	1	SN74HC595 – PDIP-16											296-1600-5-ND	595SN74HC595N	2175695		3120865
Q1; Q2; Q3; Q4; Q5; Q6; Q7; Q8;	8	1A NPN	ON Semiconductor/fairchild	PN2222ATF									PN2222ATFCT-ND	512PN2222ATF	8061296	31Y3451	1695606
R1; R2; R3; R4; R5; R6; R7; R8;	8	Resistor 270 ohm 250mW through-hole	Stackpole Electronics	CF14JT270R	Yageo	MFR-25FBF52-220R	TE Connectivity	CFR16J270R	Ohmite	OD271JE	Kamaya	RC1/4271JB	CF14JT270RCT-ND	791RC1/4271JB	148360	95W5736	2329504
C1;	1	100nF Capacitor Disc	Multicomp	MCFYU6104Z6	KEMET	C052C104K5R5CA	KEMET	C052K104K5X5CA	KEMET	C052T104K5X5CS	KEMET	C321C104K5R5HA	BC1160CT-ND	80C321C104K5R5HA	8523277	73M2154	2395773
J1;J2;	2	CONN HEADER XH TOP 4POS 2.5MM	JST	B4B-XH-A (LF)(SN)									455-2249-ND		8201551		1516278
J3; J4; J5; J6; J7; J8; J9; J10; J11;	9	CONN HEADER XH TOP 2POS 2.5MM	JST	B2B-XH-A (LF)(SN)									455-2247-ND		8201554P	73M9415	1516276
cables	26	JUMPER SXH-001T-P0.6 X2 10"	JST	ASXHSXH22K254									455-4223-ND

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BeeHive system: 8 port switch array

Hardware overview

In order to allow to use arbitrary type and number of simple tools such as low power electronics (LEDs, fans, etc) in experiments, a set of 8 switch arrays was developed. The 8 pin version utilizes a 74HC595 shift register, allowing to connect more components with less amount of pins. The power fed to the element being switched can vary from 5 to 12 volts.