Search: PIC16F84A

PIC16F84A

Information on: PIC16F84A

• Microcontroller Functions as Voltmeter
  PIC microcontroller and FETs enable a four-digit voltmeter. The circuit in Figure 1 is an extension of a previous Design Idea on how to use an analog input in a microcontroller lacking a built-in ADC, and it takes into account tricks from another Design Idea on how to drive a seven-segment LED display without external switching transistors. This circuit adds a serial link and needs only a twisted pair to send each measurement to a compatible PC. The serial link was tested using a Microsoft ...
• Very Accurate LC Meter based on PIC16F84A IC
  This is one of the most accurate and simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build yourself. This LC Meter allows to measure incredibly small inductances starting from 10 nH to 1000 nH, 1 uH to 1000 uH, 1 mH to 100 mH and capacitance from 0.1 pF up to 900 nF. LC Meter's circuit uses an auto ranging system so that way you do not need to spend time selecting ranges manually. Another neat function is the Zero Out switch that will reset the ...
• Fast NiMH / NiCd Battery charger
  Jaap Havinga This battery charger charges a NIMH 5-pack battery used in the BiPed robot in less than 1 hour, and charges the 10-pack NiCd used in the Snuf robot in about 30 minutes. To prevent overheating of the battery, the charging current is turned off when the slope of the battery-voltage turns from positive into negative. A second termination-criterion of the charging process is provided for safety: the charge time is limited to about 1 hour. Fig. 1. The battery charger in a small plastic ...