Use of "Arduino" open source hardware for solenoid device actuation in flow analysis systems

Author(s)

Marcos Y. Kamogawa ^[1] ; Jeová Correia Miranda ^[2]

Affiliation

^[1] Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz. Dep. Ciências Exatas - Brasil

^[2] Universidade de São Paulo. Centro de Energia Nuclear na Agricultura - Brasil

• Document type: Journal article
• Source: Química Nova; v. 36, n. 8, p. 1232-1235, 2013-00-00.

Abstract

This paper describes the use of the open source hardware platform, denominated "Arduino", for controlling solenoid valves for solutions handling in flow analysis systems. System assessment was carried out by spectrophotometric determination of iron (II) in natural water. The sampling rate was estimated as 45 determinations per hour and the coefficient of variation was lower than 3%. Per determination, 208 µg of 1-10-phenanthroline and ascorbic acid were consumed, generating 1.3 mL of waste. "Arduino" proved a reliable microcontroller with low cost and simple interfacing, allowing USB communication for solenoid device switching in flow systems. (AU)

• FAPESP's process: 12/08205-8 - Strategies for in situ sampling of macronutrients and micronutrients of soil
• Grantee: Marcos Yassuo Kamogawa
• Support Opportunities: Regular Research Grants
• FAPESP's process: 11/23498-9 - Advanced flow systems for technological, agronomical and environmental analysis
• Grantee: Elias Ayres Guidetti Zagatto
• Support Opportunities: Research Projects - Thematic Grants