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STD TTL(UART)-RS-232 Converter using MAX232
TTL(UART)-RS-232 Converter using MAX232
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Update time：
2021-04-09 08:44:42
Creation time：
2018-01-24 05:22:07
Description
Description
Interfacing of MCU UART with PC RS-232, requires conversion of logic levels from TTL to RS-232 levels. Using MAX232 this can be achieved employing following schematic.
Design Drawing
Design Drawing
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | MAX232 | U1 | DIP16 | 1 |
| 2 | 1k | R1,R3 | QuarterWatt | 2 |
| 3 | 100 | R2,R4,R5,R6 | QuarterWatt | 4 |
| 4 | 1uF | C1,C2,C3,C4,C5 | SPARKFUN-CAPACITORS_EIA3216-KIT | 5 |
| 5 | DB9 | X1 | DB9_MALE | 1 |
| 6 | 8052 | U2 | DIP40 | 1 |
| 7 | PC Recieve | LED1 | LED-3MM/2.54 | 1 |
| 8 | PC Transmit | LED2 | LED-3MM/2.54 | 1 |
| 9 | MCU Recieve | LED3 | LED-3MM/2.54 | 1 |
| 10 | MCU Transmit | LED4 | LED-3MM/2.54 | 1 |
| 11 | Power | LED5 | LED-3MM/2.54 | 1 |
| 12 | 2N3904 | Q1,Q2 | TO-92(TO-92-3) | 2 |
| 13 | L7805ABV | U3 | TO-220(TO-220-3) | 1 |
| 14 | >5 | DCSUPPLY | BATTERY-1 | 1 |
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