Document Changes

readme.md

@@ -2,21 +2,19 @@
 
 <font size=5>[中文文档/Chinese Document](readme_cn.md)</font>
 
-**The Project has not finished**
-
 ## Overview
 This project contains a 3Dprinter Toolhead PCB for VORON StealthBurner Toolhead
 
-![](/Document/pic/v1.0t.png)
+![](/Document/pic/v1.1t.png)
 
-![](/Document/pic/v1.0b.png)
+![](/Document/pic/v1.1b.png)
 
 The board has
 
 * RP2040 Microcontroller, connect to Raspberry PI with USB
 * TMC2209 for extruder motor
 * MAX31865 RTD-to-Digital Converter
-* SHT20 humidity&temperature sensor
+* Si7021 humidity&temperature sensor
 * ADXL345 accrometer
 * Two 5pins fan connecter, fit with 2/3/4 wires, 12/24V fans
 * A 3pins probe connecter
@@ -38,10 +36,10 @@ the RP2040 has some UART interfaces ans a USB port, the USB is used for this des
 ### MAX31865
 the on-board MAX31865 chip supports 2/3/4 wires, PT100/PT1000 RTD. please notice that you should choose the reference resistor(430R/4.3K) and a capacitor(100nF/1uF) based on your RTD value. If you use an 3wire RTD, please connect the FORCE2 pin to PORCE+, otherwise connect it to GND. Please make sure that your wiring is correct. Check the [Datasheet](https://datasheets.maximintegrated.com/en/ds/MAX31865.pdf) and [Here](Document/max31865.md) for more information.
 
-### SHT21
+### Si7021
 This sensor is used to monitor chamber temp.
 
-Though SHT21 is an NRND product now, we have no choice because klipper frimware only support SHT21. DS18B20 sensors are only supported on the "host mcu". A NTC thermistor should work too, so if a RTD sensor is used to measure hotend temp, you can have a try.
+DS18B20 sensors are only supported on the "host mcu". A NTC thermistor should work too, so if a RTD sensor is used to measure hotend temp, you can have a try.
 
 ### ADXL345
 is for resonances measurement. Both ADXL343 and ADXL345 should work
@@ -51,6 +49,11 @@ support 2wires, 3wires(with speed monitor pin), 4wires(with PWM input and speed
 
 12V/24V voltage can be set by the jumper. Check [Here](Document/fan.md) for more information.
 
+If using 12V fan, be careful that the current required by the fan must not exceed the maximum current that the DC-DC can provide.
+
+### Neopixel LED
+The 5V on the board is the LDO output, the output current is limited, and too many lamp beads cannot be connected in series.
+
 ### Heater
 be careful about selection on MOSFET, a N-Channel MOSFET with low RDSon at 4.5V
 
@@ -59,19 +62,18 @@ many models can be used, as long as they have same pin out
 
 The inductor is 4x4mm package, as slim as possible(under 2mm height)
 
-You may choose
+**Inductor Options**
 * WPN4012H (Sunlord)
 * SPH4012S PH4018 (Sunlord)
 * SWPA4010 SWPA4018 SWPA4020 (Sunlord)
 * SLW4010 (Sunltech)
 * FHD4012 (cjiang)
 
-| Buck converter options |
-| --- |
-| LMR14006 |
-| LMR14010 |
-| LMR54410(not tested) |
-| MP2451(not tested) |
-| ~~BL9342(不推荐)~~ |
+**Buck converter options**
+* LMR14006
+* LMR14010
+* LMR54410(not tested)
+* MP2451(not tested)
+* ~~BL9342(not recommended)~~
 
 please check the schmatic and chip datasheet for more details

readme_cn.md

@@ -1,19 +1,17 @@
 # Stealthburner_Toolhead_PCB
 
-**尚未完工，敬请期待**
-
 ## 简介
 
 适用于Voron StealthBurner的3D打印工具板，基于RP2040控制器
 
-![](/Document/pic/v1.0t.png)
+![](/Document/pic/v1.1t.png)
 
-![](/Document/pic/v1.0b.png)
+![](/Document/pic/v1.1b.png)
 
 * RP2040 控制器，使用USB连接上位机
 * TMC2209 挤出机电机驱动
 * MAX31865 铂电阻传感器
-* SHT20 温湿度传感器
+* Si7021 温湿度传感器
 * ADXL345 加速度计
 * 两个5pin风扇接口，支持2/3/4线，12/24V
 * 一个3pin探头接口
@@ -35,34 +33,37 @@ RP2040支持UART和USB，考虑到抗干扰选择了USB连接，不支持CANbus
 ### MAX31865
 板载MAX31865传感器，支持2/3/4线，PT100/1000铂电阻。请自行选择参考电阻(430R/4.3K)和电容(100nF/1uF)，根据需要设置跳线并进行短接，请参考[Datasheet](https://datasheets.maximintegrated.com/en/ds/MAX31865.pdf)，详细设置见[此处](Document/max31865_cn.md)
 
-### SHT21
-用于测量箱温，SHT21目前NRND，可是klipper目前仅支持SHT21，DS18B20只能直接连接到上位机，用不了。如果使用了铂电阻测温可以利用空闲的NTC测量箱温
+### Si7021
+用于测量箱温，价格昂贵且供货不稳定，不推荐焊接。DS18B20只能直接连接到上位机，用不了。如果使用了铂电阻测温可以利用空闲的NTC测量箱温
 
 ### ADXL345
 共振测量，其实只会用到那么一两次，ADXL343和ADXL345都能用
 
 ### 风扇
 支持传统2线制，3线制（方波转速检测输出）和4线制（PWM输入和转速检测），12/24V电压选择通过跳线设置
+注意若使用12V电压，需注意风扇所需电流不可超过DC-DC最大电流
 
 ### 加热棒
 选型时注意，需要N沟道耐压30V，并且在4.5V栅极电压有较低导通电阻的
 
+### Neopixel LED
+需注意板上5V是LDO输出，能力有限，不可串联过多灯珠
+
 ### DC-DC
 支持多种有相同pinout的选择，请见原理图
 
 电感使用4x4mm封装，厚度需要尽量低，2mm以内为佳
 
-参考选型
+**电感参考选型**
 * FHD4012 (长江微电)
 * SLW4010 (Sunltech韩国顺磁)
 * WPN4012H (Sunlord顺络)
 * SPH4012S PH4018 (Sunlord顺络)
 * SWPA4010 SWPA4018 SWPA4020 (Sunlord顺络)
 
-| Options |
-| --- |
-| LMR14006 |
-| LMR14010 |
-| LMR54410(未测试) |
-| MP2451(未测试) |
-| ~~BL9342(不推荐)~~ |
+**DC-DC参考选型**
+* LMR14006
+* LMR14010
+* LMR54410(未测试) 
+* MP2451(未测试)
+* ~~BL9342(不推荐)~~