Components
When I designed this controller, I already had in mind several ways of assembling it. All the components are not necessary for its proper functionning; several of them are only used with the options. I tried to use components that are easily found. Here’s the list of all the components and where to find them. Of course, the standard resistors and capacitors can be found in every electronic store. This is the price list for the components if I sell them to you.Â
Here are the minimal components required:
The circuit board; from me.
The AVR microcontroller; from me.
(1) 28 pin socket with a space of 0,300; Digikey #ED3026-ND
(1) 12 Mhz Crystal; Digikey #887-2011-ND
(1) 6-12 volts mural transformer; anywhere
(1) Omron Relay G5LE-1A-E
 5 volts Digikey#G5LE-1A-E-36 DC5 ( I’m using this one with a 9 volts DC wall transformer and a 75 Ohms resistor)
                   12 volts Digikey#G5LE-1A-E DC12 (use this one if you’re using a 12 volts wall transformer)
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(1) 3,3 volt regulator; Digikey #497-7288-ND
(1) 1N4001 diode; Digikey #641-1310-1-ND
(2) 0.1µF capacitors; Digikey#399-9877-1-ND Â
(1) 220µF 16 volt capacitor; Digikey#493-1041-ND
(1) 220µF 6,3 volt capacitor; Digikey#493-5896-1-ND
(1) 330 Ω resistor (R7), Digikey#S330QCT-ND
(1) MPSA18 Transistor; Digikey#MPSA18CS-ND can also be replaced by 2N3904; Digikey#2N3904FS-ND
(1) Connector for the motor’s wires; Digikey#277-1667-ND
The rest of the list changes with the options you want in your controller. If you want to have lights, there are three facultative LEDs on the circuit. One to show that the circuit is powered, another one to indicate that the relay is switched on and the last one that flashes with the programming.
(3) Red LEDs;Digikey#67-1105-ND
(3) 330 Ω resistors, Digikey#S330QCT-ND
If you add the dust sensor :
(1) Dust sensor Sharp GP2Y1010AU0F; Digikey#425-2068-ND
(1) Special connector for the dust sensor; Digikey#A100196-ND
(1) 220µF, 6,3 Volts capacitor; Digikey#493-5896-1-ND
(1) 150 Ω resistor; Digikey#S150QCT-ND
If you want to move the air around the sensor, a small fan is needed. Any 12 volt fan can do the job. I bought mine in a surplus store. Here’s one : Digikey#259-1462-ND
(1) MPSA18 transistor ; Digikey#MPSA18CS-ND can also be replaced by 2N3904; Digikey#2N3904FS-ND
(1) 330 Ω resistor; Digikey#S330QCT-ND
If you want the RF remote, here’s what you need :
(1) 5 volt regulator 78L05; Digikey#LM78L05ACZFS-ND
(4) 3.3KΩ resistors; Digikey#S3.3KQCT-ND
(1) RF receiver 1096-ADA;https://www.adafruit.com/product/1096
or (1) RF receiver 1098-ADA;https://www.adafruit.com/products/1098
I used the 1096 with a jumper. The 1098 should work but doesn’t require the jumper.
(1) 4 button RF transmitter; 1095-ADA; https://www.adafruit.com/product/1095
The controller can also be accessed by a Bluetooth module.
(1) Bluetooth receiver HC-06; Search on Amazon or ebay; they’re sold everywhere.
If you intend to control more than one controller, you need a Bluetooth transmitter.
(1) Master Bluetooth transmitter HC-05. Search on Amazon or ebay, they’re easy to find.
To keep the air clean in your workshop even if you’re not there, you will need a clock module.
(1) Clock module ARD-DS3231 You can find it on ebay,
All the modules for my system were bought at Abra electronics (https://abra-electronics.com)
If you don’t have a Bluetooth module you will need a potentiometer to adjust a few controls.
(1) Potentiometer; Digikey#987-1274-ND
You can also use other types of potentiometer with inline connectors like this one. (Digikey#987-1693-ND ) The adjustment is a little more difficult because it requires a screwdriver.
To connect and add the necessary jumpers, I used these types of connectors :
abra-electronics.com, sh-2, 966-POLOLU and the female connectors 1014-POLOLU, (2) 1016-POLOLU, 1017-POLOLU.
To make these connectors, I bought a box of wire connectors (JW-310-KIT at Abra)
You also need several jumpers; Digikey#3M9580-ND
And finally, a box to contain the circuit. I used a Hammond box 1591CFLBK Digikey#HM851-ND
As I said befor
e, all the components can be found in other stores than the one I listed. It should be less expensive at a store near you. I gave you a list of the components because they all come from the United States; and when I buy them in Canada, I must pay the delivery plus customs and this raises the total amount substantially.
Components’ prices if I sell them to you.
