Another minor fixes

By default the WiFi channel is used

.github/workflows/build.yml

@@ -76,11 +76,6 @@ jobs:
       run: sudo apt-get install -y libsdl2-dev
     - name: Build simulator
       run: make build_simulator
-    - name: Run simulator
-      env:
-        GAZEBO_MODEL_PATH: ${{ github.workspace }}/gazebo/models
-        GAZEBO_PLUGIN_PATH: ${{ github.workspace }}/gazebo/build
-      run: timeout --preserve-status 120 gzserver --verbose gazebo/flix.world || [ $? -eq 143 ]
     - uses: actions/upload-artifact@v4
       with:
         name: gazebo-plugin-binary

README.md

@@ -47,14 +47,6 @@ See the [user builds gallery](docs/user.md):
 
 <a href="docs/user.md"><img src="docs/img/user/user.jpg" width=500></a>
 
-### PCB
-
-The official PCB *(Flix2)* is in development now. Follow the [project's channel](https://t.me/opensourcequadcopter) to track the progress.
-
-Outdoor flights demo video of the current prototype:
-
-<a href="https://youtu.be/KXlNmvUTi4g"><img width=300 src="https://i3.ytimg.com/vi/KXlNmvUTi4g/maxresdefault.jpg"></a>
-
 ## Simulation
 
 The simulator is implemented using Gazebo and runs the original Arduino code:
@@ -81,7 +73,7 @@ Additional articles:
 |-|-|:-:|:-:|
 |Microcontroller board|ESP32 Mini.<br>ESP32-S3/ESP32-C3 boards are also supported.|<img src="docs/img/esp32.jpg" width=100>|1|
 |IMU (and barometer¹) board|GY‑91, MPU-9265 (or other MPU‑9250/MPU‑6500 board)<br>ICM20948V2 (ICM‑20948)<br>GY-521 (MPU-6050)|<img src="docs/img/gy-91.jpg" width=90 align=center><br><img src="docs/img/icm-20948.jpg" width=100><br><img src="docs/img/gy-521.jpg" width=100>|1|
-|*Boost converter (optional, for more stable power supply)*|*5V output*|<img src="docs/img/buck-boost.jpg" width=100>|1|
+|Boost converter (optional, for more stable power supply)|5V output|<img src="docs/img/buck-boost.jpg" width=100>|1|
 |Motor|8520 3.7V brushed motor.<br>Motor with exact 3.7V voltage is needed, not ranged working voltage (3.7V — 6V).<br>Make sure the motor shaft diameter and propeller hole diameter match!|<img src="docs/img/motor.jpeg" width=100>|4|
 |Propeller|55 mm or 65 mm|<img src="docs/img/prop.jpg" width=100>|4|
 |MOSFET (transistor)|100N03A or [analog](https://t.me/opensourcequadcopter/33)|<img src="docs/img/100n03a.jpg" width=100>|4|

docs/troubleshooting.md

@@ -5,7 +5,7 @@
 Do the following:
 
 * **Check ESP32 core is installed**. Check if the version matches the one used in the [tutorial](usage.md#building-the-firmware).
-* **Check libraries**. Install all the required libraries from the tutorial. Make sure there are no MPU-9250 or other peripherals libraries that may conflict with the ones used in the tutorial.
+* **Check libraries**. Install all the required libraries from the tutorial. Make sure there are no MPU9250 or other peripherals libraries that may conflict with the ones used in the tutorial.
 * **Check the chosen board**. The correct board to choose in Arduino IDE for ESP32 Mini is *WEMOS D1 MINI ESP32*.
 
 ## The drone doesn't fly

docs/usage.md

@@ -329,7 +329,7 @@ To setup ESP-NOW communication:
    espnow 7a:c8:e3:eb:bf:e9 &PiuSysxP9+$L&5E
    ```
 
-   Run this line as a console command on each drone you want to bind to this proxy board. [The maximum number](https://github.com/espressif/esp-idf/blob/e95cab4be8fd293e3f3323181e7a2280874da6f7/components/esp_wifi/include/esp_now.h#L32-L33) of simultaneously connected drones is 20 (unencrypted) io 6 (encrypted).
+   Run this line as a console command on each drone you want to bind to this proxy board.
 
 3. Set the `WIFI_MODE` parameter to `3` on the drone:
 

flix/mavlink.ino

@@ -41,7 +41,7 @@ void sendMavlink() {
 			MAV_VTOL_STATE_UNDEFINED, landed ? MAV_LANDED_STATE_ON_GROUND : MAV_LANDED_STATE_IN_AIR);
 		sendMessage(&msg);
 
-		uint16_t voltages[] = {(uint16_t)(voltage * 1000), UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX};
+		uint16_t voltages[] = {voltage * 1000, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX};
 		uint16_t voltagesExt[] = {0, 0, 0, 0};
 		float remaining = constrain(mapf(voltage, 3.4, 4.2, 0, 1), 0, 1);
 		mavlink_msg_battery_status_pack(mavlinkSysId, MAV_COMP_ID_AUTOPILOT1, &msg, 0, MAV_BATTERY_FUNCTION_ALL,
@@ -241,7 +241,7 @@ void handleMavlink(const void *_msg) {
 		}
 
 		if (m.command == MAV_CMD_COMPONENT_ARM_DISARM) {
-			if (m.param1 == 1 && controlThrottle > 0.05) return; // don't arm if throttle is not low
+			if (m.param1 && controlThrottle > 0.05) return; // don't arm if throttle is not low
 			accepted = true;
 			armed = m.param1 == 1;
 		}

flix/motors.ino

@@ -14,7 +14,10 @@ int pwmStop = 0;
 int pwmMin = 0;
 int pwmMax = -1; // -1 means duty cycle mode
 
-const int MOTOR_REAR_LEFT = 0, MOTOR_REAR_RIGHT = 1, MOTOR_FRONT_RIGHT = 2, MOTOR_FRONT_LEFT = 3;
+const int MOTOR_REAR_LEFT = 0;
+const int MOTOR_REAR_RIGHT = 1;
+const int MOTOR_FRONT_RIGHT = 2;
+const int MOTOR_FRONT_LEFT = 3;
 
 void setupMotors() {
 	print("Setup Motors\n");

flix/parameters.ino

@@ -6,11 +6,13 @@
 #include <Preferences.h>
 #include "util.h"
 
-extern int channelZero[16], channelMax[16];
+extern int channelZero[16];
+extern int channelMax[16];
 extern int rollChannel, pitchChannel, throttleChannel, yawChannel, armedChannel, modeChannel;
-extern int rcRxPin, voltagePin;
+extern int rcRxPin;
 extern int wifiMode, wifiLongRange, udpLocalPort, udpRemotePort, espnowChannel;
 extern float rcLossTimeout, descendTime;
+extern int voltagePin;
 extern float voltageScale;
 extern LowPassFilter<float> voltageFilter;
 

flix/wifi.ino

@@ -8,7 +8,7 @@
 #include <WiFiUdp.h>
 #include <MacAddress.h>
 #include <ESP32_NOW_Serial.h>
-#include <Preferences.h>
+#include "Preferences.h"
 #include "util.h"
 
 extern Preferences storage; // use the main preferences storage
@@ -33,14 +33,10 @@ void setupWiFi() {
 	if (wifiMode == W_AP) {
 		WiFi.softAP(storage.getString("WIFI_AP_SSID", "flix").c_str(), storage.getString("WIFI_AP_PASS", "flixwifi").c_str());
 		udp.begin(udpLocalPort);
-	}
-
-	if (wifiMode == W_STA) {
+	} else if (wifiMode == W_STA) {
 		WiFi.begin(storage.getString("WIFI_STA_SSID", "").c_str(), storage.getString("WIFI_STA_PASS", "").c_str());
 		udp.begin(udpLocalPort);
-	}
-
-	if (wifiMode == W_ESPNOW) {
+	} else if (wifiMode == W_ESPNOW) {
 		WiFi.mode(WIFI_AP);
 		WiFi.setChannel(espnowChannel);
 		espnow.addr(MacAddress(storage.getString("ESPNOW_PEER_MAC", "FF:FF:FF:FF:FF:FF").c_str()));

gazebo/wifi.h

@@ -11,12 +11,7 @@
 #include <sys/poll.h>
 #include <gazebo/gazebo.hh>
 
-// Mocks
-int wifiMode = 1;
-int wifiLongRange = 0;
-// int espnowChannel = 6;
-const int W_DISABLED = 0, W_AP = 1, W_STA = 2, W_ESPNOW = 3;
-
+int wifiMode = 1; // mock
 int udpLocalPort = 14580;
 int udpRemotePort = 14550;
 const char *udpRemoteIP = "255.255.255.255";