diff --git a/README.md b/README.md
index 5ba39d1..d4e9491 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,20 @@ Arduino implementation for MH-Z CO2 sensors such as **MH-Z14A**, **MH-Z18B** (as
 
 The sensor is available for ~20 bucks at the usual places.
 
+## Implementation
+See example.
+
+> PPMuart: 602, PPMpwm: 595, Temperature: 23
+
+### Implementation details
+
+```
+C ppm = 5000 * (T_high - 2 ms) / (T_high + T_low - 4ms)
+```
+
+The implementation is mostly based on  https://forum.arduino.cc/index.php?topic=525459.msg3587557#msg3587557
+
+
 ## Resources:
 
 Datasheet:
@@ -13,15 +27,6 @@ More info about the sensor:
 https://revspace.nl/MHZ19
 
 
-## Implementation
-
-```
-C ppm = 5000 * (T_high - 2 ms) / (T_high + T_low - 4ms)
-```
-
-The implementation is mostly based on  https://forum.arduino.cc/index.php?topic=525459.msg3587557#msg3587557
-
-
 ## Further reading:
 - http://ihormelnyk.com/Page/mh-z19_co2_meter