microcontroller attiny 861a-su Search Results


microcontroller attiny 861a-su  (Atmel Corporation)
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Atmel Corporation microcontroller attiny 861a-su
Equivalent circuit diagram and setup of the conductivity sensor. ( a ) Simplified equivalent circuit of the sensor setup. Alternating contact with conductive and nonconductive liquids changes the electrical properties of the electrodes. C pa includes all parasitic capacities, such as stray capacitance of the printed circuit board (PCB), input capacitance of the electronic system, etc. C’ py is the capacity of the insulating parylene C layer above the electrodes, and R ely represents the ohmic resistance due to the limited conductibility of the electrolyte. ( b ) Block diagram of the electronic system used for sensing of the conductivity. A step-up converter upregulates the battery voltage U B to the supply voltage U S required for the microprocessor. The charge and discharge times of the capacitor are monitored and converted into a rectangular signal with corresponding frequency. The frequency is read out via a <t>microcontroller</t> and communicated to a PC via a RS-232-interface. ( c ) Scheme of the setup of the microfluidic channel with the sensing electrodes.
Microcontroller Attiny 861a Su, supplied by Atmel Corporation, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Equivalent circuit diagram and setup of the conductivity sensor. ( a ) Simplified equivalent circuit of the sensor setup. Alternating contact with conductive and nonconductive liquids changes the electrical properties of the electrodes. C pa includes all parasitic capacities, such as stray capacitance of the printed circuit board (PCB), input capacitance of the electronic system, etc. C’ py is the capacity of the insulating parylene C layer above the electrodes, and R ely represents the ohmic resistance due to the limited conductibility of the electrolyte. ( b ) Block diagram of the electronic system used for sensing of the conductivity. A step-up converter upregulates the battery voltage U B to the supply voltage U S required for the microprocessor. The charge and discharge times of the capacitor are monitored and converted into a rectangular signal with corresponding frequency. The frequency is read out via a microcontroller and communicated to a PC via a RS-232-interface. ( c ) Scheme of the setup of the microfluidic channel with the sensing electrodes.

Journal: Micromachines

Article Title: A Nontoxic Battery with 3D-Printed Housing for On-Demand Operation of Microcontrollers in Microfluidic Sensors

doi: 10.3390/mi10090588

Figure Lengend Snippet: Equivalent circuit diagram and setup of the conductivity sensor. ( a ) Simplified equivalent circuit of the sensor setup. Alternating contact with conductive and nonconductive liquids changes the electrical properties of the electrodes. C pa includes all parasitic capacities, such as stray capacitance of the printed circuit board (PCB), input capacitance of the electronic system, etc. C’ py is the capacity of the insulating parylene C layer above the electrodes, and R ely represents the ohmic resistance due to the limited conductibility of the electrolyte. ( b ) Block diagram of the electronic system used for sensing of the conductivity. A step-up converter upregulates the battery voltage U B to the supply voltage U S required for the microprocessor. The charge and discharge times of the capacitor are monitored and converted into a rectangular signal with corresponding frequency. The frequency is read out via a microcontroller and communicated to a PC via a RS-232-interface. ( c ) Scheme of the setup of the microfluidic channel with the sensing electrodes.

Article Snippet: This frequency is read out by a microcontroller (ATTINY 861A-SU, Atmel, San Jose, CA, USA) and communicated to a PC via a RS-232-interface.

Techniques: Blocking Assay, Battery

Sensor performance and response time. ( a ) Alternating droplets of conducting fluid (water) and nonconducting fluid (FC-40) were passed over the sensing electrodes. The electrodes detected the change in conductivity, resulting in a change of the charge and discharge time of the capacitor, which is displayed as a change in the corresponding frequency. The battery-operated microcontroller ensures a quick and stable readout of the alternating conductivity over 100 min at 2 mA discharge current. ( b ) Sensor response time: Close-up of the detected frequency change. The sensor detects the change between the two fluids in less than 0.4 s.

Journal: Micromachines

Article Title: A Nontoxic Battery with 3D-Printed Housing for On-Demand Operation of Microcontrollers in Microfluidic Sensors

doi: 10.3390/mi10090588

Figure Lengend Snippet: Sensor performance and response time. ( a ) Alternating droplets of conducting fluid (water) and nonconducting fluid (FC-40) were passed over the sensing electrodes. The electrodes detected the change in conductivity, resulting in a change of the charge and discharge time of the capacitor, which is displayed as a change in the corresponding frequency. The battery-operated microcontroller ensures a quick and stable readout of the alternating conductivity over 100 min at 2 mA discharge current. ( b ) Sensor response time: Close-up of the detected frequency change. The sensor detects the change between the two fluids in less than 0.4 s.

Article Snippet: This frequency is read out by a microcontroller (ATTINY 861A-SU, Atmel, San Jose, CA, USA) and communicated to a PC via a RS-232-interface.

Techniques: Battery