To build a tower you will need to print the 3D parts shown on the left of the image. The "Sensors float" part is optional, print it if you want to use the pH and EC sensors. You will need 12 times the part: "Basket". You can download the files...
The sun tracking system consists of: 1. Two roller shutter/awning motors: These motors are industrial, easy to purchase, cheap, and with a high torque (10Nm being the lowest). Average price of each motor around 30€...
If your room is dark and it's on all the time, add the second blue resistor to make the photocell less sensitive to light! Move the 10k resistor from B1 to B4, leave B7 in placePlace the other 10k resistor from A1 to A4
The Arduino code is incredibly simple, with some strange looking oversampling for preventing the motors from vibrating:void sampling() //Oversample the slider readings to avoid motor vibration. { i=0; val =0; smallVal=0; while(i
It's in the GITHUB! The code comes down the these smaller steps: MQTT handling and Button handling. Let's do button handling first. I made a simple button object with the pin number, button press boolean, and button count. struct Button { const uint8_t...
moThe big black device in the middle of the printed circuit board (PCB) is the speaker (aka buzzer, or transducer). You can see a little slit in the one side where the sound comes out. There is a back side to the circuit board that you cannot easily...
Connect MPR121 to arudino i2c and power. On a Micro this is pins 2&3 plus VCC and GND. Flash the arduino and make sure everything works as you like. Breaking out the RST pin to a tactile switch is probably unnecessary, i've had no problem re-flashing...
First, let's assemble the extruder, so we can just drop it onto the printer later! There are two sets of spacers, labeled B1-B7 for the Bottom assembly, and T1-T2 for the top assembly. There is also an extruder motor shaft coupler spacer, labeled...
Attaching a SensorIn order to attach a sensor, motor, camera or other component to the Redtree Hydra, the FPGA inside must be programmed. We know that this is normally a tricky task, so we created a tool to simplify it. The Redtree Hydra has four I/O...
Next we will prepare the water flow. I decided to use this combination of pump and tubing, because they fit without an adapter. Other combinations work also. Clear tubbing isnt the best solution, because algae will grow inside the tubes. you can prevent...
Hey, what's up, Guys! Akarsh here from CETech. Today, we are going to go through A9G GPS, GSM, and GPRS module from AI Thinker. There are several other modules as well such as A9 and A6 from AI Thinker which have similar GSM and GPRS capabilities...
Before mounting the prototype PCB to the housing, I recommend uploading the required sketch to the ATtiny84 microcontroller with a programmer of your choice. I used a USBtinyISP type shown in the picture. /*Sketch for the Scary Cat Project by Gene H*/...
The plywood product I used was 1/2x2x4 G1S, $37 ea before tax in Ontario in summer of 2022. For the project infrastructure, four 1" x 4" x 8' knotty pine planks would be price competitive and less work to waterproof, but less convenient to transport....