v0.2 Update README.md

README.md

@@ -8,38 +8,34 @@ Limits:
 - 30V supply voltage (suitable for 12V and 24V systems)
 
 Features:
-- The board can be used to drive one stepper motor or two DC motors
+- Intended to drive a stepper motor
 - High impedance freewheeling with overvoltage protection
-- Magnetic angle sensor
-- CANbus transciver
+- Magnetic angle sensor (can be turned off during sleep)
+- CANbus transceiver with standby mode
 - Debug port for flashing and configuration with ESD protection
-- Optional Enable port with Brake interrupt capability
 - Low-side current, V_mot and V_Bat, PCB temperature measurments
-- Reverse polarity protection and swapped connectors protection
+- Reverse polarity protection and swapped connectors protection; ESD protections on inputs
+
+- Optional Enable port with Break interrupt capability for additional safety
+- Optional expansion port for connecting UART/I2C/PWM device or sensor
 - Optional solder jumper pads, e.g. for motor identification
 
 
 ## Schematic
-![image](https://user-images.githubusercontent.com/841061/215362745-ed1322c2-be20-4ad4-be81-bb878e06834c.png)
+![Schematic](https://github.com/dzid26/StepperServo-hardware/assets/841061/26044936-3bbd-4623-a9a9-cf02ee5615a4)
+
 
 ## PCB
 - single sided PCB for direct mounting on the motor and efficient assembly
-
-
-![PCB](https://user-images.githubusercontent.com/841061/215363469-b34c391d-9c2a-4242-88af-c807af3979e5.png)
+![PCB top](https://github.com/dzid26/StepperServo-hardware/assets/841061/6630eae3-68ce-4e0a-865e-0486b327640d)
 
 
 ## Motor
 - Recommended motor is [this](https://www.aliexpress.com/item/4001349087963.html) with 1.8° step angle with relatively high torque per amp ratio. Best coupled with 5:1 gearbox to provide enough toruqe for steering aplications, and still relatively low friction and noise.
 - Assembled board with the geared stepper motor:
-
-    <img src="https://cdn.discordapp.com/attachments/697072551792345099/1040094846616092722/rn_image_picker_lib_temp_50f777a1-98be-4415-b568-f546d33a9265.jpg" width="400" />
+<img src="https://cdn.discordapp.com/attachments/697072551792345099/1040094846616092722/rn_image_picker_lib_temp_50f777a1-98be-4415-b568-f546d33a9265.jpg" width="400" />
 
 
 ## Angle sensor magnet
 - Attaching magnet with the glue - [video](https://youtu.be/mQyXR3hITy0?t=41)
 - Magnetic field [analysis](/Design/Magnet/README.md) 
-
-## Other
-- Similar schematics [Intellistep](https://github.com/CAP1Sup/Intellistep/tree/master/Kicad/BTTS57Bv2)
-- Similar board [Bigtreetech](https://www.youtube.com/watch?v=nuKLfyWq0CM)