In the arduino code set your WiFi credentials char wifissid[] = "ENTER YOUR WiFi SSID HERE"; char wifipass[] = "ENTER YOUR WiFi PASSWORD HERE"; Normally, the signal strength is displayed in dBm. But for a non techie person, the signal strength in terms...
The ESP-32 board pins operate in 3.3v levels while the Gravity pH and EC sensors operate in 5V. I inserted a simple voltage divider to shift 5v to 3.3v levels on the signal pins.
Ethereum installation on a Raspberry PIAn Ethereum node running on a Raspberry Pi. Photo by RIeul (CC-BY-NC-SA) Equipment 3 Raspberry Pi with Ethereum client (each Pi = a node of a blockchain) 3 SD cards 2 computers Other solution Using Wio Link to simulate...
Flash the Arduino with the following sketch. This is also included as a file attached to the project. int last_level = 0; bool last_state = false; bool stable = false; int count = 0; const int cutoffs[198] = {/* 1*/ 833, 831, /* 2*/ 825, 823, /* 3*/...
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...
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...
Now that i know how to access and decode the data lets try the Raspi GATTTOOL default BLE handler:Native to Debian and a lso to a bunch of linux distros or so i've heard of . First i reset the bluetooth of the raspi, just in case: sudo service bluetooth...
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€...
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...
Mount your hardware and solder the appropriate wires from your ADC pads, GPIO pads and other components together. Each build will most certainly be unique so use your discretion as to which component attaches to which Arduino pin. I used the following...
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...
Next, you're going to get the SD card ready for booting the operating system on the Raspberry Pi. This begins with copying the official raspbian lite image to the SD card. This is a process that can be done in many ways, and it slightly differs depending...
This last step is going to get REALLY tedious because the Address Bus has so many lines. But this is the last step and you should be done, so keep it up just a little longer. A0: 6502 Pin 9 to FLiP pin 13 A1: 6502 Pin 10 to FLiP pin 14 A2: 6502...