diff --git a/README.md b/README.md
index de6adb5..cf4584b 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,7 @@ Our prototype was of great use for our long term and large volume experiments wh
#### Water Temperature Sensor: DS18B20
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[Datasheet](hardware/devices/drivers/hw/datasheets/DS18B20.pdf)
https://www.adafruit.com/product/381
@@ -55,6 +56,7 @@ https://www.adafruit.com/product/381
#### 8 Channel Input/Output Port Extender: PCF8574
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[Datasheet](hardware/devices/drivers/hw/datasheets/PCF8574.pdf)
aliexpress.com
@@ -62,16 +64,19 @@ aliexpress.com
#### I2C Bus Multiplexer: TCA9548A
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[Datasheet](hardware/devices/drivers/hw/datasheets/TCA9448A.pdf)
https://learn.adafruit.com/adafruit-tca9548a-1-to-8-i2c-multiplexer-breakout/overview
#### High Dynamic Range Digital Light Sensor: TSL2591
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[Datasheet](hardware/devices/drivers/hw/datasheets/TSL2591.pdf)
https://www.adafruit.com/product/1980
#### 16 Channel Pulse Width Modulation Module: PCA9685
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[Datasheet](hardware/devices/drivers/hw/datasheets/PCA9685.pdf)
https://www.adafruit.com/product/815