Saws ‘N Dust

I decided to include breadboard ends on this project for a couple of reasons. For the input socket, I am using a screw terminal block, which is useful if you wish to use a battery power source, then you can attach the battery leads from the battery holder instead. When the button is pushed, it connects the circuit to ground completing the circuit and turning on the LED. If you choose not to make life easier on yourself with a printout, please be very careful not to confuse anything says D13 or pin 13 on the Arduino, with pin 13 of the ATMega328. If you simply glue the bread board all the way across, the table can crack and fall apart. The image on the left shows leads that have not been pushed into the breadboard all the way.

Doing so, you also get familiar with the process of soldering parts together on the protoboard- a useful skill, especially if you ever need to build something that doesn’t fit on a breadboard so easily. So, in order to make your new chips useful for Arduino you MUST bootload them and MUST check out step 4. So, if you connect 5 volts on the top hole of one of the side columns, you will have 5 volts in all the holes of this columns. However, some breadboards only provide a single-column power distributions bus strip on each long side.

If you prefer, you can use a ZIFF socket to allow for easy removal and re-insertion, but pay attention to how the pins in the socket line up with the breadboard this example place the notch towards the power we’ve just connected – or the pin 1 dot at the left. Before you solder (or attach, if you are using a breadboard) the free ends of the penny wires to the rest of the circuit, drill two holes in the box you decorated. Dive into the nuts and bolts of computers, create and manage digital media, and make the most of your iPod and cell phone.

The other holes are linked vertically in blocks of 5 with no link across the centre as shown by the blue lines on the diagram. If you must have stranded wire (as with an inductor or transformer lead), solder (or use a wire nut to connect) the stranded wire to a short length of solid hookup wire, and insert only the solid wire into the breadboard. Printed circuit boards with the same 5-hole connection pattern as breadboards can be purchased and used for hobby circuit construction, though. Once the groove was cut, I measured the distance I’d need to cut off of the top and bottom of the table to make the tongue.

Now we’ll be adding the USB to Serial breakout board to our Arduino breadboard circuit. Solderless breadboard modules can also be found mounted on devices like microcontroller evaluation boards. Alternatively, you could use alligator clips , IC hooks , or any other cables with a banana connection to hook your breadboard up to a number of different supplies. Very complex circuits can become unmanageable on a solderless breadboard due to the large amount of wiring required. This makes sense when designed a circuit but it does not resemble the actual physical chip at all.

A SparkFun Mini Breadboard from the top (left) and the same breadboard flipped over with the adhesive back removed (right). If you just want to get it working, you can skip installing the 6-pin header and just run jumper wires straight from the USB-TTL header to the appropriate pins on the breadboard. But part of the fun is in-circuit programming so keep going to really make a full USB-Arduino-circuit on a breadboard!

Beneath all those holes, a breadboard houses an army of springy metal clips which hold component leads in place while providing electrical connections between them. This tutorial was kept simple as an introduction to some basic electronic components and so that you can learn how a breadboard works before tackling more complex circuits. They will be held in place snugly enough that they will not fall out (even if you turn the breadboard upside-down), but lightly enough that you can easily pull on them to remove them. If the top shifts as the glue dries, trim it with a saw, using the breadboard ends as a guide. Hence, for any simple logic gate experiment a small power source will work fine.

As well as a breadboard the kit includes resistors, capacitors, transistors, diodes, LEDs, variable resistors, 555 timer ICs, a 9V battery clip and various colours of wire to make the links. All I know is that I tried randomly unplugging wires from my breadboard to see if it still worked… and I couldn’t find any that left it still working, haha. If you’re piggybacking off an existing Arduino to program the chip (described later on) you can also connect the power rails directly to the +5V and GND.


You can add a USB serial port to your breadboard Arduino in no time at all with our USB-Serial Adapter It gives you all the functionality that a normal board has – a USB socket to upload sketches, and full serial access so you can use the Serial Monitor – or send and receive data with other PC-based applications in python, etc. But the benches I took from your design and just made mine 20″x14″ to fit nicely under the table and out of the way. I was actually surprised by this, as I would have thought that the moisture in the tortilla might cause a short circuit.

Thinking I could get them back to flat and ignore one bench being 1/8″ to 3/16″ smaller in length/width than the others, I neglected to make sure the sides were now 90 deg to the mortise. With each pair of images in the process below, we can see the schematic and the corresponding breadboard setup. I choose this combination because it will be easy to remember that the outer most power line is always GND and the inner one is 5v. You are free to choose which line is for what. You might need to experiment with higher power circuits, and I make no claims about the safety of using the Tortilla-Board™. It does not matter which way around the resistor is plugged into the breadboard.

You may be wondering how often you’ll actually need this technique if you don’t plan on using breadboard ends on your next table tops, or if you’re not planning on building any breadboards in the near future. If you are unsure about this circuit, you could throw it together on a breadboard quickly to make sure it works before you put it into your final design. On my first table i attached the BB using a Kreg jig and pocket screws, so it is attached firmly.

I have only partially completed the circuit in the picture, but rest assured the assembly was quick and smelled very good when I was done. This layout means that you can usually duplicate your breadboard circuit exactly, soldering as you go, to make a permanent copy of your breadboarded one. Typically, you only need to connect a power and ground wire from the posts to the breadboard.

A SparkFun USB Breadboard Power Supply that pulls power from your computer’s USB and has the option to choose between 3.3V and 5V. Whether it’s a robot that can cook your breakfast or a GPS cat tracking device, our products and resources are designed to make the world of electronics more accessible. If you wired the power lines correctly, the red LED should turn on. You can now open the Arduino IDE as usual, and select the correct serial port (in my case it was something beginning with usbserial). You may need to gently bend the pins inward to get them to align with the breadboard holes.

After test-fitting the breadboard ends, spread a little glue on the dowels, attach the ends, then use three ratchet-strap clamps to apply pressure as the glue dries. If you connected an LED and resistor just like this, and it didn’t light, check to make sure that the anode (the long leg) of the LED is connected to the resistor, and the cathode (the short leg) is connected to the ground wire. The rest of the holes on the breadboard are connected in vertical connected columns of five.

However, unlike breadboard diagrams, circuit diagrams only show electrical connections between components. Lay things out as sensibly as possible, so each component of the circuit is near the components it needs to connect to. Use wires when needed to separate parts of the circuit that are crowded together. When you start to put components on your breadboard, avoid adding, removing, or changing components on a breadboard whenever the board is powered.

Unlike its larger cousins, the 170pt mini breadboard doesn’t have power and ground busses.” These connections usually run the full length of the breadboard and give you a common place from which any column can be powered or connected to ground but you can get by without them. I actually didn’t get the groove in exactly the center of each board, so the amount I needed to cut out of the top and bottom of the table was different. It is a tool to help you cutting jumping wires to insert into a breadboard to a desired length and form.

A modern solderless breadboard consists of a perforated block of plastic with numerous tin plated phosphor bronze or nickel silver alloy spring clips under the perforations. If you have a breadboard with two lines instead of one then the two lines are isolated from each other. My neighbor wants to build this exact table and I told him the same thing about the pocket hole screws. You may find it helpful to use diagonal cutters to cut off the very end of a component lead.

The chips require +5.0V and will not operate with +3.3V. You may then connect two inputs (either GPIO output ports or directly from power source) to pin #1 and pin #2, and connect the output (pin #3) to either an LED (with an appropriate resistor) or a GPIO input port (with a voltage regulator). The image below of the back of a breadboard may help to clear up how the holes on the front of the board are connected.