RS-232 Levels Adapter
author: maccasoft
2 layer board of 2.35 x 1.26 inches (59.7 x 32.1 mm)
Uploaded:
June 21, 2016
Shared:
June 21, 2016
Total Price:
$14.80
Simple transistor-based RS-232 levels adapter.
Output levels on CONN2 are translated to Vcc level, verified with 5v and 3.3v.
Parts List
R1 = 4.700 ohm ¼ watt
R2 = 4.700 ohm ¼ watt
R3 = 4.700 ohm ¼ watt
R4 = 1.000 ohm ¼ watt
R5 = 4.700 ohm ¼ watt
R6 = 4.700 ohm ¼ watt
TR1 = Transistor NPN BC547
TR2 = Transistor NPN BC547
TR3 = Transistor PNP BC557
CONN1 = DB9 Female Connector
Simple transistor-based RS-232 levels adapter.
Output levels on CONN2 are translated to Vcc level, verified with 5v and 3.3v.
Parts List
R1 = 4.700 ohm ¼ watt
R2 = 4.700 ohm ¼ watt
R3 = 4.700 ohm ¼ watt
R4 = 1.000 ohm ¼ watt
R5 = 4.700 ohm ¼ watt
R6 = 4.700 ohm ¼ watt
TR1 = Transistor NPN BC547
TR2 = Transistor NPN BC547
TR3 = Transistor PNP BC557
CONN1 = DB9 Female Connector
