Hardware list is complete

diff --git a/hardware-list-datasheets.md b/hardware-list-datasheets.md
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+## Hardware List
+### Board
+NUCLEO-F767ZI
+
+[St product page](https://www.st.com/en/evaluation-tools/nucleo-f767zi.html)
+
+[Getting started with STM32 Nucleo board software development tools](https://www.st.com/content/ccc/resource/technical/document/user_manual/1b/03/1b/b4/88/20/4e/cd/DM00105928.pdf/files/DM00105928.pdf/jcr:content/translations/en.DM00105928.pdf)
+
+[User manual STM32 Nucleo-144 boards](https://www.st.com/content/ccc/resource/technical/document/user_manual/group0/26/49/90/2e/33/0d/4a/da/DM00244518/files/DM00244518.pdf/jcr:content/translations/en.DM00244518.pdf)
+
+### Motors
+RE 40 Ø40 mm, Graphite Brushes, 150 Watt
+
+Part number 148867
+
+[Specifications](https://www.maxongroup.com/maxon/view/product/motor/dcmotor/re/re40/148867)
+
+
+### Gearheads
+Planetary Gearhead GP 42 C Ø42 mm, 3 - 15 Nm, Ceramic Version
+
+Part number 203123
+
+[Specifications](https://www.maxongroup.com/maxon/view/product/gear/planetary/gp42/203123)
+
+### Encoders
+HEDS-5540#A11
+
+[Product page](https://www.broadcom.com/products/motion-control-encoders/incremental-encoders/transmissive-encoders/heds-5540a11)
+
+[Data sheet](https://docs.broadcom.com/docs/AV02-1046EN)
+
+
+### Driver
+Pololu Dual G2 High-Power Motor Driver 24v18 Shield for Arduino
+
+[Product page](https://www.pololu.com/product/2518)
+
+[Documentation](https://www.pololu.com/docs/0J72/all)

diff --git a/hardware-requirements.md b/hardware-requirements.md
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-## Hardware requirements and peripherals
-
-### Motor drivers
-[High-power motor drivers](https://www.pololu.com/category/11/brushed-dc-motor-drivers)
-
-We have to control 2 motors so a 2 channel driver should be the best choice.
-TBD which one depending on the motor current needs.
-
-### Encoders
-
-TBD
-
-### PIN requirements
-##### pin needed for encoders:
-2 GPIO for each encoder, 4 GPIO total
-
-##### pin needed for drivers:
-* 6 GPIO for fault indicators, sleep inputs, motor directions
-* 2 PWM pins for motor speed control
-* 2 Analog pins for current sense
-
-##### Total pin count:
-* 10 GPIO
-* 2 PWM
-* 2 Analog

diff --git a/learning-resources/learning-resources.md b/learning-resources/learning-resources.md
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--- a/learning-resources/learning-resources.md
+++ b/learning-resources/learning-resources.md
@@ -6,7 +6,7 @@
 ### PID
 [Introduction to pid](https://www.csimn.com/CSI_pages/PIDforDummies.html)
 
-[PID without PhD](https://m.eet.com/media/1112634/f-wescot.pdf)
+[PID without PhD](http://wescottdesign.com/articles/pid/pidWithoutAPhd.pdf)
 
 [Reddit thread](https://www.reddit.com/r/engineering/comments/3jcxe9/can_someone_eli5_basic_pid_loop_tuning/)