modularfaduino:cfadca4l

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======CFADC-4L======
A 4-channel AD input module that can measure voltage and current. You can select current (0~20mA) or voltage (0~10V) input by setting the dip switch.

[[https://comfiletech.com/modular-faduino/cfadc-a4l-analog-input-module/|View at our online store]].
=====Electrical specifications=====
  * AD input points: 4 channels
  * Voltage input range: 0 to 10VDC
  * Current input range: 0~20mA
  * Error rate: ±0.1%
  * Resolution: Approximately 14.7Bit (0 to 26,666 values returned)
  * Input response speed: approximately 5mS
  * Isolation: No isolation

=====Wiring method=====

{{:modularfaduino:cfadc-a4ld.png?nolink |}}

===== Measurement dip switch settings =====
  * Set the voltage or current you want to measure with the DIP switch.
  * Only one of the V and A switches on each channel must be turned ON.
  * V=On / A=Off => Voltage measurement
  * V=Off / A=On => Current measurement

{{ :modularfaduino:a_v_dip2.png?nolink |}}
===== Setting the module's address =====
  * Up to 4 CFADC-A4Ls can be used in one system with different address settings.
  * The address setting method is different from other I/O modules. Caution is required.
  * This method turns on only one of the four dip switches.

{{ :modularfaduino:add_4key2.png?nolink |}}
=====How to use the API=====

1. <html><code>#include "CFMEGA.h"</code></html> library registration

2. CFNET object creation: ''CFNET **object name**'' =>'' CFNET ** cfnet;**''

3. Call the function(s): ''**Object name**.analogRead();'' => ''**cfnet**.analogRead(0,0);''
====-u16 analogRead(u8 address, u8 channel) ====
Reads the analog value of the corresponding channel of the specified address module. (about 0~26,666)
  * ''address'': The address of the module as configured by its DIP switch (0~3)
  * ''channel'': Channel number (0~3)

<code c>
#include "CFMEGA.h"

CFNET cfnet;

void setup() { Serial.begin(9600); }
void loop() {

 u16 CH0 = cfnet.analogRead(0, 0);
 u16 CH1 = cfnet.analogRead(0,1);

 Serial.print("CH0:"); Serial.print(CH0); Serial.print("\n");
 Serial.print("CH1:"); Serial.print(CH1); Serial.print("\n");
 delay(200);
 Serial.print("\n");
}
</code>

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