diff --git a/en/sigmastar-research.md b/en/sigmastar-research.md
index 2db6cab..5c5626f 100644
--- a/en/sigmastar-research.md
+++ b/en/sigmastar-research.md
@@ -25,3 +25,20 @@ echo 40000 > /sys/class/pwm/pwmchip0/pwm4/period
 echo 40 > /sys/class/pwm/pwmchip0/pwm4/duty_cycle
 echo 1 > /sys/class/pwm/pwmchip0/pwm4/enable
 ```
+
+#### 61 pin  red_led PM_GPIO2
+./devmem 0x1f001CA0 w 0x40
+
+echo 2 > /sys/class/pwm/pwmchip0/export
+echo 16000 > /sys/class/pwm/pwmchip0/pwm2/period
+echo 50 > /sys/class/pwm/pwmchip0/pwm2/duty_cycle
+echo 1 > /sys/class/pwm/pwmchip0/pwm2/enable
+
+
+#### 63 pin  blue_led PM_GPIO3
+./devmem 0x1f001CA0 w 0x100
+
+echo 3 > /sys/class/pwm/pwmchip0/export
+echo 16000 > /sys/class/pwm/pwmchip0/pwm3/period
+echo 80 > /sys/class/pwm/pwmchip0/pwm3/duty_cycle
+echo 1 > /sys/class/pwm/pwmchip0/pwm3/enable