Robotics and IoT

Moisture Sensor Project with GrovePi and Hologram Nova This project uses the Grove Moisture Sensor that can be used to detect the moisture of the soil or there exists water around the sensor. The sensor can just simply be inserted into the a plant’s soil and measure the moisture in the soil. Based on the data, it is possible to determine if the soil is humid or dry and it can send a notification ‘Feed me some water’ to the owner of the plant. This project shows how to use a cellular modem purpose built for IoT development from Hologram to send alerts/notifications. Things used in this project: Things used in this project: Hardware components: Raspberry Pi Zero  WH GrovePi Zero  Gove -M oisture Sensor Grove LCD RGB Backlight Hologram SIM Software Apps: GrovePi  Python Hologram CLI Grove Moisture Sensor measures soil moisture based on soil resistivity. It has the following specifications to determine if the soil is dry of humid based on th...

Motion Detection Project with GrovePi  and Hologram Nova This project uses the Grove Motion Sensor that can be used to detect movement of people, animals or other objects. It also can send notifications using cellular network. Things used in this project: Hardware components: Raspberry Pi Zero W or WH GrovePi Zero  Grove PIR Motion Sensor Grove LCD RGB Backlight Hologram SIM Software Apps: GrovePi  Python Hologram CLI Grove - Adjustable PIR Motion Sensor - It uses passive infrared  motion sensor, which can detect infrared object motion up to 3 meters. It is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view.  Animals, people or various objects emit heat energy in the form of radiation. This radiation is not visibile to human eye as it radiates at infrared wavelengths, but it can be detected PIR-based motion detector. These are commonly used in burglar alarms. GrovePi Zero is...

Gas Leak Detection Project with GrovePi  and Hologram Nova  This project uses Grove Gas Sensor (MQ2) for detecting gas leakage and it can also send notifications using cellular network.  It can be used for detecting the following:   Smoke   Propane   Carbon Monoxide   Liquified Petroleum Gas   H2   Methane    Things used in this project: Hardware components: Raspberry Pi Zero  WH GrovePi Zero  Gove -Gas Sensor (MQ2) Grove LCD RGB Backlight Hologram SIM Software Apps: GrovePi  Python Hologram CLI Gas sensor module from Grove system provides  the ability to detect if there is any gas leakage of combustible gas or smoke. The measurements can be taken as soon as possible due to its sensitivity and fast response time.   GrovePi Zero is a HAT from Dexter Industries   that allows Grove Gas Sensor (MQ2) to connect to Raspberry Pi zero with out needing soldering or brea...

Water Leak Detection Project with GrovePi  and Hologram Nova This project uses the Grove water sensor that can detect water leaks, spills, floods, and rain. It also can send notifications using cellular network. Things used in this project: Hardware components: Raspberry Pi Zero W or WH GrovePi Zero  Grove Water Sensor Grove LCD RGB Backlight Hologram SIM Software Apps: GrovePi  Python Hologram CLI Water sensor module from Grove system provides  the ability to detect if there is any water leak by measuring conductivity. The water sensor traces have a weak pull-up resistor of 1 MΩ and it pulls the sensor trace value high until a drop of water shorts the sensor trace to the grounded trace. GrovePi Zero is a HAT from Dexter Industries   that allows Grove Water sensor to connect to Raspberry Pi zero with out needing soldering or breadboards. One can plug in the Grove water sensor start programming. Grove water sensor works with digital I/...

GrovePi and Hologram Nova CLI Installation on Raspberry Pi Zero Raspberry Pi Zero W (or Raspberry Pi  zero WH ) is one of the smallest and ultra-low-cost computer  available that has both Wi-Fi and Bluetooth available. Because of its potential, available software and community support, it can be used in a wide number of IoT and robotics projects.     The main difference between Raspberry Pi Zero W and WH is that Raspberry Pi Zero WH comes with pre soldered header. It is important to have the GPIO pins available with a Raspberry Pi Zero W(H), before integrating with Grovepi Zero kit. If one starts Raspberry Pi Zero W, instead of WH, solderless Raspberry Pi pin headers can used used to attach the pins as an alternative to soldering the pins.   GrovePi Zero from Dexter Industries is an add-an board for Raspberry Pi zero W that allows various Grove sensors directly to the board. There exists a number of Grove sensors such as temperature, humidity, air q...