Adjustment of motors

I connected the 4 white ESC control wires to servos 0 to 3 (pins 7,11,12 and 13) and the black wires to ground (pin 9):



















Servo number    GPIO number   Pin in P1 header   Moteur          


          0            4             P1-7         M1


          1           17             P1-11        M2


          2           18             P1-12        M3


          3          21/27           P1-13        M4


    











Then I adjust the direction of rotation of the motors as below:

















In order for the quadcopter to be stable and not to turn on itself, the M1 / M3 motors must rotate in the same direction and M2 / M4 in the opposite direction. If a motor does not rotate in the desired direction, swap 2 of the 3 wires































Commentaires











Enregistrer un commentaire































Posts les plus consultés de ce blog









Attiny13A sleep mode




















Image







   Attiny : arduino's little brother   Arduino is a very good card but if you need a very smaller card size or if you don't need alls pins and less memory, Attiny is a good alternative     VCC =Voltage is 2.7-5.5 v    Notice :  Pins output high voltage is 4.3 volts with a Vcc of 5 volts. For 3.3 Vcc, pins o utput  voltage is 2.5 V   So be carefull, this is not 3.3 volts like Arduino    How to program Attiny    To program attiny, just use Arduino IDE.    To do this, you will have to connevt Attiny to arduino.        Arduino will now be used as bridge     Initial step    Upload ArduinoISP sketch on your arduino : Select card Arduino Uno Load sketch Samples > 11.ArduinoISP  Tips : be sure to unplug all wires before to upload the sketch     First step  First time and only once, you have to write bootloader on Attiny : Choose 'Arduino as ISP' as the programmer prior to burning the Arduino bootloader onto the ATtiny Select card ATtinyXX Verify Board Properties...








Lire la suite










Esp-01 deep sleep mode




















Image







 ESP-01  Esp01 is a very small esp8266. Less pins and small size. So it is wonder for iot projects     But ESP-01 consumption is around 90 mAh. So you can't power it with a battery because lifetime will be only few days.  To decrease consumption you have to put esp01 in a sleep mode. Best mode is deep sleep mode which reduce consumption to less than 1 uAh.   Power consumption - See datasheet    Standby ~ 0.9uA   Running ~60-215mA,   Average ~ 80mA       How to power  To power ESP-01 you have to    use a 3.3v battery  connect pin 1-GND to ground  connect pin 8-VCC and to 3.3v          Found a 3.3v battery is not easy. A solution is to use 18650 battery 3.7v (or 3x AA) and drop voltage to 3.3v. To drop voltage, you can use a LDO like MCP1700-3302E/TO      VIN : 2.3-6v VOUT : 3.3v    Goto Deep Sleep mode    To use deep sleep mode, it is pretty easy. Just add ESP.deepsleep(5*1000000) in your code to go to sleep for 5 seconds.  After 5s ESP will wakeup and restart and run setup() again ...








Lire la suite










Install and configure OpenVPN on OSMC





















 This is a tutorial on how to install and start an OpenVPN connection when your Linux system boots.   Install OpenVPN      sudo apt-get install openvpn  copy your config files provides from your VPN to /etc/openvpn  save your credentials in a file and modify your .ovpn config file like described below  start and test it using sudo openvpn --config myvpn.ovpn  use traceroute to see if vpn is working. Launch traceroute before connecting vpn and after. You should see differences in routes.         Auto-connect OpenVPN via terminal   1. Create auth.txt file inside /etc/openvpn directory via this command:   sudo gedit /etc/openvpn/auth.txt     Fill it with your VPN credentials:   username  password    Save it.   2. Then open the file which you are using to establish a connection:   sudo gedit /etc/openvpn/myvpn.ovpn     And change this line:   auth-user-pass     into   auth-user-pass auth.txt     Save the file and change its name:   sudo mv /etc/openvpn/myvpn.ovpn /etc/openvpn...








Lire la suite