CO2 Meter SE-11 Manuale - Pagina 3

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6/3/2019

i. Ground

ii. Enable

iii. S11 Voltage Input

iv. S11 DVCC

v. S11 VDDIO

vi. S11 nRDY

vii. TX / SDA

viii. COMSEL

ix. RX / SCL

1.2 Switch Settings

1.2.1 Switch Functions

1: S11 RX Selector - Selects the source of transmit from USB or a microcontroller connected to the 10-pin

Connector (Slide Up for USB and Slide Down for Microcontroller)

2: S11 TX Selector - Selects the source of the receiver from USB or a microcontroller connected to the 10-pin

Connector (Slide Up for USB and Slide down for Microcontroller)

3: I

C SCL Pull Up Resistor - Slide down to add a Pull Up Resistor to your I

Microcontroller Connector. If using USB connector, leave this switch function Up.

4: I

C SDA Pull Up Resistor - Slide down to add a Pull Up Resistor to your I

Microcontroller Connector. If using USB Connector, leave this switch function Up.

5: VDDIO - The S11 Sensor requires a reference voltage for the Communications. To use the same voltage as

what is supplied to power the S11 Sensor, keep the switch function up, to use a different IO Voltage supplied on

the 10-pin Connector, push the switch down. For standard USB Connection, leave this switch function up.

6: Enable - The S11 Sensor has the ability to turn on and off the Sensor element to save power. To have the

Sensor always enabled and taking measurements, slide the switch function up. If you will have a microcontroller

connected to the 10-pin microcontroller connector and enabling and disabling the sensor, slide the switch

function down.

README.md

C Serial Clock attached to the 10-pin

C Serial Data attached to the 10-pin

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