F21: Flame Over - Revision history

Proj user4: /* References Used */

2021-12-18T07:59:02Z

‎References Used

Proj user4: /* References Used */

2021-12-18T07:58:30Z

‎References Used

Proj user4: /* References Used */

2021-12-18T07:44:37Z

‎References Used

Proj user4 at 07:18, 18 December 2021

2021-12-18T07:18:12Z

Proj user4: /* Testing & Technical Challenges */

2021-12-18T07:01:28Z

‎Testing & Technical Challenges

Proj user4: /* Team Members & Responsibilities */

2021-12-18T06:46:45Z

‎Team Members & Responsibilities

Proj user4: /* ZigBee: */

2021-12-18T06:39:08Z

‎ZigBee:

Proj user4: /* ZigBee: */

2021-12-18T06:36:13Z

‎ZigBee:

Proj user4: /* Software Implementation */

2021-12-18T06:30:09Z

‎Software Implementation

Proj user4: /* Software Implementation */

2021-12-18T06:29:54Z

‎Software Implementation

@@ Line 782: / Line 782: @@
 *[http://www.socialledge.com/sjsu/index.php?title=Realtime_OS_on_Embedded_Systems FreeRTOS documentations]
 *[https://learn.sparkfun.com/tutorials/rgb-panel-hookup-guide?_ga=2.111533508.177452041.1605078754-2035904423.1601235282 RGB Panel Hookup Guide 1]
-*[https://www.prf.jcu.cz/generator-led-matrix/index.htm]
+*[https://www.prf.jcu.cz/generator-led-matrix/index.htm/ LED Matrix Code Generator]
 *[https://learn.sparkfun.com/tutorials/using-eagle-schematic/all Sparfun Tutorial for PCB Design]
 *[https://www.youtube.com/watch?v=1AXwjZoyNno AutoDesk Eagle Software Tutorial]
 *[https://arduinoplusplus.wordpress.com/2018/07/23/yx5300-serial-mp3-player-catalex-module/ MP3 commands]
 *[https://www.youtube.com/watch?v=yK__DhapraA TinkerCad Tutorial]

@@ Line 782: / Line 782: @@
 *[http://www.socialledge.com/sjsu/index.php?title=Realtime_OS_on_Embedded_Systems FreeRTOS documentations]
 *[https://learn.sparkfun.com/tutorials/rgb-panel-hookup-guide?_ga=2.111533508.177452041.1605078754-2035904423.1601235282 RGB Panel Hookup Guide 1]
 *[https://learn.sparkfun.com/tutorials/using-eagle-schematic/all Sparfun Tutorial for PCB Design]
 *[https://www.youtube.com/watch?v=1AXwjZoyNno AutoDesk Eagle Software Tutorial]
 *[https://arduinoplusplus.wordpress.com/2018/07/23/yx5300-serial-mp3-player-catalex-module/ MP3 commands]
 *[https://www.youtube.com/watch?v=yK__DhapraA TinkerCad Tutorial]

@@ Line 779: / Line 779: @@
 === '''References Used''' ===
 *[https://learn.sparkfun.com/tutorials/rgb-panel-hookup-guide?_ga=2.111533508.177452041.1605078754-2035904423.1601235282 RGB Panel Hookup Guide 1]
-*[http://www.socialledge.com/sjsu/index.php?title=Realtime_OS_on_Embedded_Systems FreeRTOS documentations]
+*[https://learn.sparkfun.com/tutorials/using-eagle-schematic/all Sparfun Tutorial for PCB Design]
 *[https://www.youtube.com/watch?v=1AXwjZoyNno AutoDesk Eagle Software Tutorial]
 *[https://arduinoplusplus.wordpress.com/2018/07/23/yx5300-serial-mp3-player-catalex-module/ MP3 commands]

@@ Line 433: / Line 433: @@
 </li>
 </ul></div>
 ==== LED Matrix ====
 A 64x64 RGB LED Matrix Panel is used as the display for this game. It has 64 rows and 64 columns. It is divided into two 32x64 sections. Each LED pixel can be accessed and controlled individually. A decoder is used to access individual row. One row can be selected at a time using A,B,C,D and E pins. This enables us to select one row in each of the 32X64 sections. Columns are controlled using shift registers, every bit in the shift register controls the corresponding column. On every falling edge of the clock pulse, the values at R1, B1, G1, R2, B2, and G2 pins are stored into the shift register and the register shifts the data by one bit. After this, the data on the shift register is passed onto the individual LED's when both OE and LE pins are set to high.
@@ Line 538: / Line 579: @@
 [[File:Flame_over_joystick.png|thumb|500px|Joystick|centre]]
-===='''Software Implementation:'''====
+====='''Software Implementation:'''=====
 The joystick communicates with the SJTwo board via ADC pins. Joystick provides two outputs which are X-axis (connected to ADC_2: P0_25 of SJTwo), Y-axis (connected to ADC_4: P1_30 of SJTwo). The outputs at X-axis and Y-axis are taken as inputs for changing the fireman positions. The switch takes the input from the user and is used to fire the water bullets towards the generated fire flames.
@@ Line 588: / Line 629: @@
 [[File:FlameOver_XBeeMod.png|thumb|500px|Xbee Module|centre]]
-==== '''Interface between SJTwo board and ZigBee:''' ====
+===== '''Interface between SJTwo board and ZigBee:''' =====
 [[File:Flame_over_xbee.png|thumb|500px|Xbee Module|centre]]
-===='''Software Implementation'''====
+====='''Software Implementation'''=====
 '''Transmitter end:'''
@@ Line 626: / Line 667: @@
+   }
 === Software Design and Implementation ===
@@ Line 667: / Line 702: @@
 **When the flame hits the fireman for 3 times, fireman's health reduced by 1. Burst animation is played at the collision. And once the fireman's health reduces to 20 from the initial 100, the player loses all lives and loses the game.
 === '''3D Packaging'''===
@@ Line 733: / Line 736: @@
 </center>
-=== Testing & Technical Challenges ===
+== Testing & Technical Challenges ==
-== Testing ==
+=== Testing ===
 Below are the steps taken for testing and verification:
 * Verified that the pin connections are correct after hardware integration on PCB
@@ Line 743: / Line 746: @@
 * Intensive testing performed to confirm synchronisation of soud effects with the game logic.
-== Technical Challenges ==
+=== Technical Challenges ===
 '''LED Matrix'''
 * Designing the main character of the game was time consuming as it required proper plotting of pixel data and proper alignment.

@@ Line 733: / Line 733: @@
 </center>
-== Testing & Technical Challenges ==
+=== Testing & Technical Challenges ===
-* Technical Challenges
+== Testing ==
-'''Flickering of data -'''
+Below are the steps taken for testing and verification:
-Finding a good refresh rate was crucial for the display. The screen ended up flickering for few refresh rates. The task design had to be curated and the refresh rate had to be reevaluated to mitigate flickering.
+* Verified that the pin connections are correct after hardware integration on PCB
-In the initial stages of familiarizing with the LED matrix display, we observed random pixels being lit instead of the desired ones. We referred to online sources to see what we were doing wrong. We later changed our initializing sequence and it started working fine.
+* Verified continuity between the pins.
-'''SD card formatting and file structure -'''
+== Technical Challenges ==
-Songs are referenced by folder and by song ‘index’, although it seems that the numeric index is sometimes ignored and the songs played in the order they are stored in the SD card. The documentation is unclear on this and seems to imply both situations. So, even if you plan only one playlist, it is better to keep them in a ’01’ folder and save all the songs to the SD card at the same time.
+'''LED Matrix'''
-'''Exhausting UART peripherals -'''
+'''MP3 Serial Player and Sound Effects -'''
-We initially planned of using only one SJ2 board for the driving the LED display, MP3 Decoder and Joystick. But we exhausted the pins on the SJ2 board with LED Matrix display and MP3 Decoder. So we used another SJ2 board to wirelessly transmit the joystick signals to the main board over zigbee.
+'''PCB Designing -'''
-Finding the appropriate game sounds for free was tough as most of the sounds were paid.
+'''Exhausting UART peripherals -'''
 == Conclusion ==

@@ Line 31: / Line 31: @@
 *  Vaidehi Deshpande
 ** Joystick Interfacing - ADC driver
-** Speaker and MP3 Decoder interfacing
+** MP3 Serial Player Driver
 ** Zigbee interfacing with UART driver for transmission and reception
 ** Built game characters on LED matrix display

@@ Line 582: / Line 582: @@
 ==== '''ZigBee:''' ====
-Zigbee is a wireless communication module which use IEEE 802.15.4 standard. 802.15.4 is a IEEE standard for low power applications of radio frequency.
+Zigbee is a wireless communication module which use IEEE 802.15.4 standard. 802.15.4 is a IEEE standard for low power applications of radio frequency. Zigbee generally operates in the 2.4GHz range (although there are geographic variations), and supports data ranges from 20 to 250 kbits/s.The transmission distance though, is small compared to the likes of LoRa. It is 10 to 100 m, whereas LoRa can transmit over a few kilometers. Another thing to note is that Zigbee communication doesn’t work very well if there is no line of sight between transmitter and receiver.Even minor obstacles have been observed to significantly degrade the communication.
-The project uses two SJTwo boards and these two boards are connected using a ZigBee module on each board. Zigbee can communicate with external devices such as sensors and communication devices. The Zigbee module needs to be configured using XCTU software.
+Our project uses two SJTwo boards and these two boards are connected using a ZigBee module on each board. Zigbee can communicate with external devices such as sensors and communication devices. The Zigbee module needs to be configured using XCTU software.
 [[File:FlameOver_XBeeMod.png|thumb|500px|Xbee Module|centre]]

@@ Line 615: / Line 615: @@
        for (int i = 0; i < 90; i++) {
          led_matrix__updateDisplay();
-         flameover_xbee_recvr__receive_data(); // Bee RX
+         flameover_xbee_recvr__receive_data(); // XBee RX
          if (joystick_control_signal == 9) {
            start_flag = true;