...cant understand how can i do it. Need someone who can build me an android app which gives me fire alert when temperature is above some threshold (using arduino uno and temp sensor DHT22 and connecting those hardware with android app).After fire alert I need users location inside a building using triangulation ( using 3 routers and using their RSSI values
...Arduino programming for simple project. The project about the following: 1- Parts: A- Arduio uno. B- Relay ( 1-channel ). C- Ultrasonic sensor . D- Breadboard. 2- How it is work: - Ultrasonic sensor: if the distance reached point <= A, Relay will open, if reached point >=B, Relay will close. Between A & B keeb the last Relay status. - User
...ensure efficient system usage. • Install and configured Cybercafé server and Clients in each workstation. • Managed 150 work stations with wireless network, including trouble shooting, repairing workstations with wireless Access points and server. • Produce workstations, n/w and Point Of Sale software’s for small retail units. • Re-imaging hard dr...
...guide me on how turn off and on sensor using (MQ-135 or similar) using NodeMCU running on 18650 battery. Main requirements are: 1. Power consumption low (uA) during sleep so battery can last 1 year. 2. Able to detect when battery is low and send an alert 3. Receive updates via OTA There will be 4 milestones: 1. Circuit design (Frizting or similar) to
This design eliminates the human involvement in electricity maintenance. The energy meters are connected to the PIC micro controller through an interfacing circuit. The optocoupler sensor gives an interrupt each time the meter LED ashes to the programmed PIC micro controller. The readings of the main energy meter and sub energy meters are compared
He construido una cortacesped eléctrica ...esa función y me gustaría adaptarlo a mi proyecto. para ello dispongo actualmente de la cortacésped exactamente igual a la del PDF adjunto y a mayores una IMU GY-80 y un sensor ultrasónico HC-SR04 por si fuese necesario. el código que está actualmente cargado en el cortacesped va adjunto en el ...
...interface. this controller should receive the instructions (On/Off relays) from web interface and should also interfaced with RFID reader (Wiegand protocol),door sensor (on/off magnetic sensor) and 2 switches (one way switch). The web interface should be as follows: A. configuration - To be able to add RFID card and rename it with the user name
Hi I have a code of android application to read sensor data accelerometer , magnetometer, gyroscope . the code is ok but I want to save this data in CSV file in sdcard storage of smartphone . I tried many times it is just adding a new function of storing as CSV to my code but there is an error i cant fix it . please I do not want any one did
Schematic / Simulation (to test?) / PCB (using EasyEDA?) Chip: ESP32S Input voltage: 12 V Board size: 20x20cm 9 PWM lines of 9 leds each with total power about 30W (59 white leds, 10 red 660 nm, 12 blue 465nm ) 4 on board RGBW addressed leds (I2C or SPI? NeoPixel?) + 1 out connector Connector for 2-phase 4-wire micro stepper motor DC3V-5V Temperature
...GAMES WITH ME TRYING TO WIN THE PROJECT AWARD BECAUSE I WILL KNOW. MANY THANKS FOR YOUR COOPERATION TOPIC: The aim of the project is to design and develop a self-powered wireless personal health monitoring system which can be used for patients or elderly people either at home or in a caring facility. This system will enable the family or the staff
This is a Pharma Market Access project where, from a global point of view, the main objectives are: - Understand the circuit of the negotiation (at hospital level, at central level, at regional level, how it works in each region, etc), - The flowchart of decision from the approval of the drug in the market, to the reimbursement, central tenders
Need a design device with GPS sensor, mesh network IOT. number of devices are less than 10,000. Need schematic, PCB, programs, also solution to gather data from mesh network. Proffered chip is well known semiconductor companies.
Seeking a Design and Engineering Solution for having 5 cylindrical projectiles come out of a rectangular shaped box using spring action or another mechanical...having 5 cylindrical projectiles come out of a rectangular shaped box using spring action or another mechanical solution, without utilizing an electrical source. Sample schematic attached.
basically we need to develop a "Rev...any place less than 1200m. The underwater Arduino will sense data from various sensors and will communicate the consolidated data to the other sensor over RS 485 protocol. 3. All the relevant circuit schematic and firmware for both the ends is to be done as part of the project including data logging in an SD Card.