Documentation for BBP-01 Board
Parts List (All part numbers are Digikey, unless otherwise specified.)
| Label | Description | Part Number |
| C1, C4 | Cap, .01 uF Ceramic | BC1078CT-ND |
| C2 | Cap, 100 uF (50 v) Elect. | 493-1107-ND |
| C3 | Cap, 47 uF (50 v) Elect. | 493-1106-ND |
| D1 | Diode, 1N4001 | 1N4001RLGOSCT-ND |
| H1-H6 | Header, Male, snap | 929400E-01-36-ND |
| LED | LED, Red | 160-1705-ND |
| None | Voltage Regulator (7805) | LM7805CT-ND |
| Power | Power Connector | CP-102A-ND |
| R1 | Resister, 330 ohm, 1/4 Watt | 330QBK-ND |
| Sw1 | Switch, Slide | 611-1101M2S3CQE2 (Mouser) |
Assembly Instructions
Note: On BBP-01 Power Supply board, the six 2-pin headers are inserted from the bottom of the board and soldered on the top of the board. In other words, the black plastic piece that connects the pins is below the board. It is best to leave these headers to last.
Because the BBP-01 is so small, you may find it helpful to use a "helping hand" to hold the board as you solder - you may also want to use masking tape or blue painter's tape to keep parts from moving when the board is upside-down, as shown in the following photo. This photo is of a Prog-05 board being assembled, but the process is similar for all our boards.
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To assemble the BBP-01 board, it is best to proceed from the smallest to the largest parts: solder in the resistor first, then the diode (make sure the cathode is toward the left, as indicated on the silk-screen), then C1 and C4 (the two small by-pass caps), followed by the LED (be sure to insert the cathode lead into the square pad on the board), then the power connector, then the switch and C2 and C3 (the two large electrolytic caps), and finally the voltage regulator (be sure to orient it correctly - i.e., the tall metal tab should be toward the power connector).
When you have soldered all the parts that mount on the top of the board (and solder on the bottom), make sure all the excess leads have been clipped. At this point you may want to rub the bottom of the board a few times on a piece of emery-type sand paper to remove any sharp edges. You can use flux remover to clean the bottom of the board, but I have found that ordinary paint thinner and a tooth brush works just as well for this purpose, and it's easier on your hands. The following photo shows the results of sanding and cleaning the bottom of the board. (The photo is actually of a Prog-05 board, but the principle is the same.)
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Now you are ready to insert and solder the six 2-pin headers. As mentioned above, each of these headers is inserted from the bottom of the board, and soldered on the top of the board.
In order to simplify this step, it may be helpful to first insert the longer ends of each of the 2-pin headers into the power rails of a breadboard (spaced appropriately to match up with the holes in the BBP-01 board - see the first photo below). Then, place the BBP-01 board on top of the six 2-pin headers and solder all the header pins on the top of the BBP-01 board (see the second photo below).
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When all the parts have been soldered to the BBP-01 board, remove it from the breadboard (being careful not to bend any of the header pins). Locate headers H3 and H6 (they are both near the mid-line of the BBP-01 board, just above the "Gnd" and "+5v" labels on the silk-screen. When you are certain that you have identified the correct two headers, use small diagonal pliers to snip off each of the pins that extend below the BBP-01 board (see the photo below).
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The function of the H3 and H6 headers is only to support the BBP-01 board in a level position on the breadboard. Removing their pins as described above will enable you to position the BBP-01 board further toward the end of your breadboard, thereby providing more space for your breadbaord circuitry.
Whenever you insert the BBP-01 into a breadboard, make certain that the "Gnd" and "+5v" labels on the silk-screen line up correctly with the "Ground" and "+5 volts" power buses on the breadboard. For example, see the photo below, which shows the PPB-01 installed correctly on a breadboard with the Prog-05 programming adaptor and a PICAXE-08M circuit.
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As a safety precaution, always use a multi-meter to check for the correct power connections before installing any circuitry on the breadboard. Failure to take this extra step could result in accidentally reversing the power connections, which could seriously damage your breadboard circuitry.
If you have any problems getting your BBP-01 board to function properly, email me at Ron@JRHackett.net and I will do what I can to help.
Thank you for purchasing a JRHackett.net product!