EDN #155 Now Available

In this issue:

• Low-Cost Microcontrollers: Applications for Small-Scale Agriculture
• Echoes from our Network: A Deep Litter System for Natural Chicken Production
• From ECHO's Seed Bank: 'KDV-1' Maize
• Books, Websites, and Other Resources: WHO Monographs on Selected Medicinal Plants and Canadian Foodgrains Bank Video Series on Conservation Agriculture and Marketing<

Download EDN 155

Low-Cost Microcontrollers:

Applications for Small-Scale Agriculture

Tim Motis

Excerpt:

Think of a microcontroller as a tiny computer that does specific tasks, like reading a sensor every hour. Once programmed, the microcontroller and any sensors connected to it can operate apart from a computer. The usefulness of microcontrollers goes beyond data logging. Microcontrollers can perform actions triggered by sensor readings. You could turn on a heat source if temperatures drop too low or turn on a solenoid valve if soil moisture levels indicate that water should be applied to a garden or field.

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