Velleman К8088 User Manual
Page 10
10
LED:
LEDs require a series resistor (R4, R5 or R6)
Determine led voltage drop (Check manufacturer datasheet).
Rule of thumb: red: 1.7V, green: 2V, blue: 3..4V).
Next, check required LED current.
Example:
Red LED, 1.7V drop, required current: 20mA
Resistor calculation: (12V-1.7V) / 0.020 = 515 ohm (choose nearest value,
e.g. 560 ohm)
Resistor power rating calculation: (12V-1.7V) x (12V-1.7V) / 560 = 0.19W
(choose a 0.25W resistor)
Connection
12VDC
-
+
C (-)
A (+)
See also other documents in the category Velleman Hardware:
- NC3MDL1-B (2 pages)
- NC3MXX (1 page)
- NC5FDL1 (2 pages)
- NC3MDL1 (2 pages)
- EDU01 (32 pages)
- NC5MX (1 page)
- MK166 (1 page)
- К8095 (9 pages)
- VMa02 (4 pages)
- VM8090 (1 page)
- VM116 (32 pages)
- EDU02 (28 pages)
- VM202 (1 page)
- NL4MP (1 page)
- NC3MXX-BAG (1 page)
- VM120 (48 pages)
- VM153 EU (1 page)
- VM119 (32 pages)
- VM133 (24 pages)
- VM148 (24 pages)
- MK155 (1 page)
- VCC6 (20 pages)
- MK179 (2 pages)
- VMa04 (4 pages)
- VM122 (44 pages)
- VM134 (24 pages)
- NAC3FCA (1 page)
- VM121 (32 pages)
- К8048 (15 pages)
- К8048 (14 pages)
- VM150 (1 page)
- VMa01 (4 pages)
- NL4FX (2 pages)
- VM152 (20 pages)
- MK157 (1 page)
- VM112 (4 pages)
- VM130 (20 pages)
- NC3FXX-BAG (1 page)
- MK160 (1 page)
- NC5MDL1 (2 pages)
- VM118r (36 pages)
- VM179 (2 pages)
- VM192ir (2 pages)
- VM138 (40 pages)
- VM160 (20 pages)