The AD8232 ECG Module is a cost-effective board used to measure the electrical activity of the heart. This electrical activity can be charted as an ECG or Electrocardiogram and output as an analog reading.
Additionally, this board includes pins like the right arm (RA), left arm (LA) & right leg (RL) pins to connect custom sensors. An LED indicator in this board is used to indicate the heartbeat rhythm of humans. The AD8232 ECG module comprises a function like quick restore used to decrease the length of long resolving tails of the HPFs.
AD8232 ECG module can be easily interfaced with any microcontroller unit. It requires one analog pin for getting the output of the sensor and three digital pins for control related operations.SHDN,LO+,LO-
Pin Description of the AD8232 ECG Module
Pin Name | Description |
GND | Power Supply Ground |
3.3v | Power Supply 3.3v |
Output (ADC) | Operational Amplifier Output. The fully conditioned heart rate signal is present at this output. OUT can be connected to the input of an ADC. |
LO- | Leads Off Comparator Output. In dc leads off detection mode, LO− is high when the electrode to −IN is disconnected, and it is low when connected |
LO+ | Leads Off Comparator Output. In dc leads off detection mode, LOD+ is high when the +IN electrode is disconnected, and it is low when connected |
| Shutdown Control Input. Drive SDN low to enter the low power shutdown mode. |
RA (Right Arm) | RED Biomedical electrode pad RA(input). Instrumentation Amplifier Negative Input. −IN is typically connected to the right arm (RA) electrode |
LA (Left Arm) | YELLOW Biomedical electrode pad LA(input). Instrumentation Amplifier Positive Input. +IN is typically connected to the left arm (LA) electrode |
RL(Right Leg) | GREEN Biomedical electrode pad RL(input). Right Leg Drive Output. Connect the driven electrode (typically, right leg) to the RLD pin. |
3.5mm ECG Biomedical Electrode Connector Jack | Combine Biomedical Electrode pad Connector of RA, LA, RL |
