This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
id2:bom:start [2020/05/03 22:25] piumarta |
id2:bom:start [2020/05/06 09:58] (current) piumarta |
||
|---|---|---|---|
| Line 11: | Line 11: | ||
| Should not be connected directly to the microcontroller. | Should not be connected directly to the microcontroller. | ||
| Use at least a 150Ω series resistor on one of the loudspeaker leads to limit the current. | Use at least a 150Ω series resistor on one of the loudspeaker leads to limit the current. | ||
| + | <WRAP>{{ :id2:bom:sp36mm.png?direct&100|}}</WRAP> | ||
| <WRAP clear></WRAP> | <WRAP clear></WRAP> | ||
| {{ :id2:bom:03-p1350494.jpg?direct&200|}} | {{ :id2:bom:03-p1350494.jpg?direct&200|}} | ||
| Line 62: | Line 63: | ||
| for more information. | for more information. | ||
| - | **9.** 4 × 150Ω resistors. Colour coded: brown green black black. | + | **9.** 4 × 150Ω resistors. Colour coded: brown green black black. {{:id2:bom:r-150r.png?direct&100|}} |
| - | **10.** 4 × 180Ω resistors. Colour coded: brown grey black black. | + | **10.** 4 × 180Ω resistors. Colour coded: brown grey black black. {{:id2:bom:r-180r.png?direct&100|}} |
| - | **11.** 10 × 330Ω resistors. Colour coded: orange orange black black. | + | **11.** 10 × 330Ω resistors. Colour coded: orange orange black black. {{:id2:bom:r-330r.png?direct&100|}} |
| <WRAP clear></WRAP> | <WRAP clear></WRAP> | ||
| {{ :id2:bom:12-14-p1350491.jpg?direct&200|}} | {{ :id2:bom:12-14-p1350491.jpg?direct&200|}} | ||
| - | **12.** 1 × 10kΩ resistors. Colour coded: brown black black red. | + | **12.** 1 × 10kΩ resistors. Colour coded: brown black black red. {{:id2:bom:r-10k.png?direct&100|}} |
| - | **13.** 5 × 47kΩ resistors. Colour coded: yellow violet black red. | + | **13.** 5 × 47kΩ resistors. Colour coded: yellow violet black red. {{:id2:bom:r-47k.png?direct&100|}} |
| - | **14.** 2 × 4.7MΩ resistors. Colour coded: yellow violet green. | + | **14.** 2 × 4.7MΩ resistors. Colour coded: yellow violet green. {{:id2:bom:r-4m7.png?direct&100|}} |
| <WRAP clear></WRAP> | <WRAP clear></WRAP> | ||
| {{ :id2:bom:15-16-p1350495.jpg?direct&200|}} | {{ :id2:bom:15-16-p1350495.jpg?direct&200|}} | ||
| Line 81: | Line 82: | ||
| **16.** LM35 centigrade temperature sensor. | **16.** LM35 centigrade temperature sensor. | ||
| + | <WRAP> | ||
| + | {{ :id2:bom:lm35-dsc03363.jpg?direct&50|}} | ||
| **WARNING:** These devices are completely different to the BC548 transistors (27) even though they look identical. | **WARNING:** These devices are completely different to the BC548 transistors (27) even though they look identical. | ||
| Before using either in a circuit, verify the code printed on the device to make sure it is the one you intend to use. | Before using either in a circuit, verify the code printed on the device to make sure it is the one you intend to use. | ||
| Using the wrong device in the circuit could destroy it. | Using the wrong device in the circuit could destroy it. | ||
| - | <WRAP clear></WRAP> | + | </WRAP><WRAP clear></WRAP> |
| {{ :id2:bom:17-p1350490.jpg?direct&200|}} | {{ :id2:bom:17-p1350490.jpg?direct&200|}} | ||
| **17.** 5 × momentary-action push-button switches. | **17.** 5 × momentary-action push-button switches. | ||
| Line 102: | Line 105: | ||
| **21.** 100nF ceramic capacitor. Marked: 104. | **21.** 100nF ceramic capacitor. Marked: 104. | ||
| + | |||
| + | {{:id2:bom:c-series.png?direct&400|}} | ||
| + | |||
| <WRAP clear></WRAP> | <WRAP clear></WRAP> | ||
| {{ :id2:bom:23-24-p1350495.jpg?direct&200|}} | {{ :id2:bom:23-24-p1350495.jpg?direct&200|}} | ||
| + | <WRAP> | ||
| **23.** 2 × 74HC164 octal serial-in parallel-out shift register. | **23.** 2 × 74HC164 octal serial-in parallel-out shift register. | ||
| + | {{ :id2:bom:74hc164-p1350532.jpg?direct&100|}} | ||
| + | With the U-shaped notch on the left, pin 1 is bottom-left, pin 7 is bottom-right, pin 8 is top-right and pin 14 is top-left.\\ \\ | ||
| **24.** 2 × 74HC595 octal serial-in parallel-out shift register with tri-state output register. | **24.** 2 × 74HC595 octal serial-in parallel-out shift register with tri-state output register. | ||
| - | <WRAP clear></WRAP> | + | {{ :id2:bom:74hc595-p1350532.jpg?direct&100|}} |
| + | With the U-shaped notch on the left, pin 1 is bottom-left, pin 8 is bottom-right, pin 9 is top-right and pin 16 is top-left. | ||
| + | </WRAP><WRAP clear></WRAP> | ||
| {{ :id2:bom:25-26-p1350495.jpg?direct&200|}} | {{ :id2:bom:25-26-p1350495.jpg?direct&200|}} | ||
| + | <WRAP> | ||
| **25.** MCP3204 4-channel 12-bit analogue-to-digital converter with SPI interface. | **25.** MCP3204 4-channel 12-bit analogue-to-digital converter with SPI interface. | ||
| + | {{ :id2:bom:mcp3204-p1350532.jpg?direct&100|}} | ||
| + | The dot indicates pin 1. Pins are numbered anti-clockwise.\\ \\ | ||
| **26.** MCP4822 2-channel 12-bit digital-to-analogue converter with SPI interface. | **26.** MCP4822 2-channel 12-bit digital-to-analogue converter with SPI interface. | ||
| + | {{ :id2:bom:mcp4822-p1350532.jpg?direct&100|}} | ||
| + | The dot indicates pin 1. Pins are numbered anti-clockwise. | ||
| + | </WRAP> | ||
| **WARNING:** integrated circuits (23-26) are very sensitive to static electricity. | **WARNING:** integrated circuits (23-26) are very sensitive to static electricity. | ||
| Line 122: | Line 137: | ||
| In dry weather you can sometimes feel a jolt as this electricity discharges from you when you touch a metal object such as a door handle. | In dry weather you can sometimes feel a jolt as this electricity discharges from you when you touch a metal object such as a door handle. | ||
| This static electric charge that accumulates on you can also instantly destroy an integrated circuit.) | This static electric charge that accumulates on you can also instantly destroy an integrated circuit.) | ||
| + | |||
| + | Note: there are extra markings on these integrated circuits. | ||
| + | The maker is shown in front of the device number (SN = Texas Instruments, MCP = Microchip) | ||
| + | and the package type is sometimes shown after the device number (N = plastic). | ||
| <WRAP clear></WRAP> | <WRAP clear></WRAP> | ||
| {{ :id2:bom:27-p1350492.jpg?direct&200|}} | {{ :id2:bom:27-p1350492.jpg?direct&200|}} | ||
| **27.** BC548 general-purpose NPN silicon bipolar junction transistor. | **27.** BC548 general-purpose NPN silicon bipolar junction transistor. | ||
| + | <WRAP> | ||
| + | {{ :id2:bom:bc548-dsc03366.jpg?direct&50|}} | ||
| **WARNING:** These devices are completely different to the LM35 temperature sensors (16) even though they look identical. | **WARNING:** These devices are completely different to the LM35 temperature sensors (16) even though they look identical. | ||
| Before using either in a circuit, verify the code printed on the device to make sure it is the one you intend to use. | Before using either in a circuit, verify the code printed on the device to make sure it is the one you intend to use. | ||
| Using the wrong device in the circuit could destroy it. | Using the wrong device in the circuit could destroy it. | ||
| - | <WRAP clear></WRAP> | + | </WRAP><WRAP clear></WRAP> |
| {{ :id2:bom:28-30-p1350487.jpg?direct&200|}} | {{ :id2:bom:28-30-p1350487.jpg?direct&200|}} | ||
| **28.** USB cable type A to type B. | **28.** USB cable type A to type B. | ||