Summary of ATTiny2313 Board RS232
This project describes a small controller board using the AT2313 microcontroller with a 10MHz crystal, designed for educational use, experiments, and prototyping. It features a 10-pin ISP connector for programming, a push-button reset, dual ML10 connectors for I/O pins, a DC power connector (1.1mm), a 5V regulator, and a DB9 connector interfacing with a PC serial port. The MAX232 IC manages RS232 voltage level conversion. Compatible with ATTiny2313 and some obsolete microcontrollers, it supports various projects like LED blinking and LCD interfacing.
Parts used in the Controller Board:
- DC Conn 1.1mm pin (Bu1)
- 47µF 16V Capacitor (C1)
- 100nF Capacitors (C2, C3, C4, C9, C10, C11)
- 1µF 63V Capacitors (C5, C6, C7, C8)
- 7805 Voltage Regulator (IC1)
- AT90S2313 Microcontroller (IC2)
- MAX232 IC (IC3)
- ML10 Connectors (K1, K2, K3)
- DB9 Female Connector (K4)
- 10MHz Crystal (Q1)
- 10k Resistor (R1)
- Switch (S1)
- PCB
Description
This board is a small controller board on which you can build your projects. It is suited for educational use, experiments or prototyping. The board uses the AT2313 microcontroller with a 10Mhz crystal. The board contains the ISP 10-pin connector for in circuit serial programming. It has also a push button reset switch for resetting the microcontroller. The I/O pins of the microcontroller are also available on two ML10 connectors for connecting for example the LCD-Interface board. The power can be connected via the DC connector which has a pin of 1.1mm. The power regulator supplies the microcontroller with the 5V DC power it needs. The DB9 bus connector can be hooked to the serial port of your PC for communication between the microcontroller and the PC. The MAX232 IC takes care of the voltage conversion of the RS232 voltage levels and the micrcontroller voltage levels.
Programming
The microcontroller on the board can be programmed via the 10-pin ISP connector. The following AT microcontrollers can be programmed with this board:
- ATTiny2313
- AT90S2313 (obsolete)
- AT90S1200 (obsolete)
Connector pinout
In the table below you see the pins of the connectors.
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Software
There are several projects on this site that you can try and use with the ISP-board:
Partlist
| 1 | Bu1 | DC Conn 1,1mm pin |
| 2 | C1 | 47µF 16V |
| 3 | C2 | 100nF |
| 4 | C3 | 100nF |
| 5 | C4 | 100nF |
| 6 | C5 | 1µF 63V |
| 7 | C6 | 1µF 63V |
| 8 | C7 | 1µF 63V |
| 9 | C8 | 1µF 63V |
| 10 | C9 | 100nF |
| 11 | C10 | 100nF |
| 12 | C11 | 100nF |
| 13 | IC1 | 7805 |
| 14 | IC2 | AT90S2313 |
| 15 | IC3 | MAX232 |
| 16 | K1 | ML10 |
| 17 | K2 | ML10 |
| 18 | K3 | ML10 |
| 19 | K4 | DB9 female |
| 20 | Q1 | 10MHz |
| 21 | R1 | 10k |
| 22 | S1 | Switch |
| 23 | PCB |
