Please note that in OpenWRT version 18.06.04 and luci-app-openvpn 19.263.64918-825 on this LinkSys router is not available option for upload of VPN config file. So WinSCP and detailed guidelines has to be used.
Lesson learned. The guides are quite detailled and is necessary to follow them in detail. My biggest mistake was the fact that the separate file used for login data for VPN was using “login” and “password” words in addition to login information…
I needed more space for battery and some modification (buttons, matrix display, etc.) Therefore I have started with modification of OpenScad file. This files looks parametric, but in the end a lot of parameters are fixed
I needed to learn OpenScad and modified the file. I have not finished yet and Legs still needs to be adjusted. Most of the parameters now are outside modules.
Other issue is the fact that servos with the same name can have different size, servo horns etc.
I have deleted from the file the option for SG90 servo.
I have added DC/DC converter with output 5V directly charging the Arduino Nano. It looks that the voltage converter on the Arduino board is not powerful enough. Voltage source LiPo battery 7.4V.
Added voltage divider in order to allow voltage measurement. I have adjusted parameters in “BatReader” accordingly.
Added switch button for charging of the Bluetooth module in order to avoid the game with wires. Bluetooth module is connected to standard Serial Pins (0,1)
Added RGB Diode WS2812, program modified and used library “light_WS2812”
Have you ever wondering how this works. Degree is clear, but % little bit more complicated. % says what is the height difference in relation to the horizontal distance in other words tangent of the degree. Following graph is self explaining. Note that 100% slope is exactly 45 degree.
My router went to silicon heaven and I needed to replace it.
I needed to connect two rooms in order to share network printer, NAS, and other devices. I have chosen router ASUS RT AC58U and bought two of them. By surprise these routers do not support wireless bridge mode.
Wireless bridge scheme
After some searching there is ingenious open source project for routers firmware. LEDE Project This software completely replace the firmware and open all imaginable features. The firmware requires some knowledge of the networking and if you are not familiar with words like bridge, firewall then the beginning could be difficult.
1. Install extension Betaflight in Google Chrome. This is very nice program for complete setup of Flight Controller Omnibus F4 SD. SD stands for SD card.
2. Update FW. For booting of flight controller in update mode you need to hold button next USB on flight controller. Green LED will light. Probably you will need to install drivers for Update mode and maybe for normal mode.
Just the top of the frame needs to be disassembled in order to reach the button.
4. Receiver installation. I have bought R820X v2 from Hobbyking with SBUS output. This can be directly connected to flight controller. I have completely stripped off the receiver and soldered the cable to Bind connector of the receiver. Works nice!