Getting Started Guide

Core System Components

To run a fired COBRA show you need at least two pieces of hardware:

• Remote: Sends commands to your firing modules. The 18R2 remote supports manual firing, auto-fire sequences and fully scripted shows.
• Firing module: Receives commands and fires your igniters. Modules come in 6-cue, 18-cue, 36-cue and 72-cue configurations in groups, or banks of 18. Assign each bank of a module to a channel to control when its cues fire.
• Optional accessories: Add an Audio Box for music-synchronized shows or use software such as the COBRA Control Panel for an enhanced UI for the COBRA 18R2.

Power and Batteries

COBRA equipment uses AA, 9V or Lithium Polymer (LiPo) batteries. Some modules support external 12V – 24V power for permanent installations or for moments when the internal battery cannot produce enough firing power for your show. Follow these general rules:

• Use only Energizer alkaline batteries for AA and 9V devices.
• Fully charge LiPo batteries before use when possible.
• Match your module's voltage mode to the battery type. Modules shipped with LiPo batteries are preset to 14.8V.

Starting Up Your Equipment

COBRA devices turn on with a key or switch and operate in one of two modes:

• TEST mode: Safe to handle; used for checking signal strength and continuity. The module runs a self-test and flashes the cue lights.
• ARM mode: Ready to fire. Only enter ARM when you are on site and ready to shoot.

For device-specific startup sequences including firmware version, address display, and battery life indicators, refer to the articles linked below.

Safety First

Always take precautions when working with pyrotechnics:

• Keep your body clear of fireworks and cues while connecting igniters.
• Visually inspect wiring and cues for damage before connecting anything.
• Make a plan for where modules and fireworks will be placed. Do not move live product after it has been wired.
• Use proper safety glasses when working in the field.
• Always test in TEST mode before arming your system.

How to Sync

1. Turn on your devices: Power on your 18R2 and the module you want to sync. Wait until both devices complete their startup sequences.
2. Enter program mode: Hold the SYNC button on the 18R2 until "P" appears on the display. On the module, press and hold SYNC until it enters program mode.
3. Pair the devices: Press and hold SYNC on both devices simultaneously. The module will restart and display its assigned address (A00, A01, etc.). The 18R2 remains in program mode so you can sync multiple modules without re-entering program mode.
4. Verify the connection: To confirm a device is synced, set the 18R2 to the same channel as the module and press SYNC. A negative value on the display indicates signal strength.

Modules remember their address and sync status even when powered off or batteries are removed, so you typically only need to sync once per module.

Channels and Banks

• A channel links your remote's cue buttons to specific modules. If your remote is on channel 1, pressing cue 5 fires cue 5 on every module set to channel 1.
• A bank is a group of 18 cues on a module. An 18M has one bank, a 36M has two banks and a 72M has four banks. Each bank can be assigned its own channel.
• Addresses (A00, A01, etc.) uniquely identify modules but do not affect firing order. They are useful for troubleshooting signal or continuity issues when several modules share a channel.
• To change a channel on the modules, press and hold the CH+ or CH- button for about one second. This small delay prevents you from accidentally changing the module channel in the field when handling the module physically. For the 36M and 72M modules, you can toggle to different banks by pressing the CHANGE BANK button.

Planning Field Layout

Organize modules and channels before show day to avoid confusion:

• Small shows (1–3 modules): Assign each module its own channel for simple control.
• Large shows (10+ modules): Group modules by position (left, center, right) or effect type. Keep a field map and physically label modules using masking tape and a sharpie.
• Multi-bank modules: Assign unused banks to channels not used in your show so continuity checks are straightforward.
• Track modules by address: Note the address when modules boot. Physically label modules using masking tape and a sharpie so you can identify them quickly in the field.

Overview of Firing Methods

• Manual firing: Press cue buttons on the remote in real time. Suitable for small shows or demonstrations. You can fire one or multiple cues at once.
• STEP firing: Press STEP to fire cues sequentially (1–18) on the current channel. The remote automatically moves to the next channel after cue 18. Ideal for small shows where you want to watch each effect before firing the next.
• Auto-Fire: Press AUTO-FIRE to setup and fire a sequence of cues on the same channel with a fixed delay between shots.
• Scripted shows: Pre-program cue timings and channels using show scripting software. Push one button on the remote to run the entire show automatically. CORBA offers timed only, STEP and timed/STEP scripted shows explained in the next chapter.
• Pyromusicals: Combine fireworks with music using an Audio Box or SMPTE timecode.

Igniter Check

Confirm your igniters are compatible with the selected firing mode. For example, Talon/Clip-On igniters require a longer pulse (Clip-On Mode). Do not exceed a module's maximum firing capacity.

Show Planning Basics

Before building a script or manually firing, spend time planning. A well-thought-out plan saves time later and reduces mistakes.

• Show length: Decide how long the show will last.
• Music: Choose whether to sync the show to music.
• Budget & scale: Balance big centerpiece effects against continuous firing for a dense show.
• Structure: Plan an opener, middle and finale.
• Effects & layout: Decide on firework types, firing positions and firing style (e.g., symmetrical, chases, random, choreographed).
• Safety: Follow site restrictions and maintain safe distances.

Scripting Software Options

COBRA scripts are comma-separated value (CSV files). You can create them using:

• COBRA Show Creator: A web-based tool for building and visualizing scripts. Manage effects and inventory, add music and check for conflicts before exporting.
• Finale 3D: Advanced software for designing shows with position mapping and 3D simulations. Supports COBRA script export.
• Showsim: A customizable program with show simulation and layout tools. Supports COBRA exports.
• Spreadsheet editors: Because scripts are CSV files you can build them in Excel or similar tools. Follow the correct format for your firmware version.

Building and Testing Scripts

Decide whether to build a Timed, STEP, or STEP/Timed script:

• Timed: Runs from start to finish automatically. Great for music-synced shows.
• STEP: Executes events one at a time when you press STEP. Allows you to adjust timing on the fly.
• STEP/Timed: Combines manual steps with automated sequences.

Assign channels and cues according to your planned layout. Avoid overlapping events and verify timing. When the script is ready:

1. Copy the CSV to a USB drive. For firmware 5.0.2 and lower the file must be named cobra.csv. Firmware 5.1 and later accepts custom filenames such as my_show.csv.
2. Load the script by inserting the USB into the 18R2 and powering on. The cue LEDs spin while the script loads. If there are errors (e.g., invalid format) the remote displays script error codes.
3. Check script expected continuity: After loading, the 18R2 shows which channels and cues are scripted by lighting the cue LED RED.
4. Dry run: Arm the 18R2 and run the script without fireworks connected or with test LEDs. Verify timing, music sync (if applicable) and error conditions.

Checking Continuity

• On the 18R2, navigate to a channel and view the cue LEDs. Green indicates good continuity; red indicates expected continuity based on the script, but no igniter present. Learn more about continuity testing.
• On modules, power on to TEST mode then press the TEST button to display continuity. For the 36M and 72M, press the CHANGE BANK button to toggle between the banks and associated channels.
• Use the Control Panel or Show Operator software to view continuity for all modules and channels at once.

Checking Signal Strength

Navigate to a channel of one of your modules and press the SYNC button on the 18R2. Signal strength checks can be done directly from the module as well, by simply pressing TEST. Use the Control Panel or Show Operator for system-wide monitoring. Learn more about signal strength checking.

Best Practices

• Run a complete continuity and signal check after setup.
• Re-check whenever you move a module, change channels or update a script.
• Label modules and effects clearly to simplify troubleshooting.

Field Setup & Protection

• Position modules on stable, elevated surfaces to avoid water, fallout and debris. Ensure clear line of sight between modules and the 18R2 (or between modules when using mesh networking).
• Secure wiring so cables and slats stay connected during the show. Route igniter wires out the side of armored cases and close lids to protect connectors.
• Protect antennas: Use only COBRA-supplied antennas. In challenging environments consider accessories like the Signal Booster or Dish Antenna to improve connectivity.

Signal Strength Checks

Check signal strength from the 18R2 in TEST mode by navigating to the module channel. You can also test signal directly from the module by pressing and releasing the TEST button. Avoid placing modules behind metal or concrete. Use antenna extension cables to improve line of sight. Learn about the system's effective range.

Continuity Confirmation

After connecting all igniters, press TEST on each module or use the 18R2 to verify continuity. Green cue LEDs indicate good wiring for each channel. Red cue LEDs indicate no continuity, but the channel / cue combination is in your loaded script.

Sync, Signal, Continuity and ARM Check

1. Power all modules to TEST. Modules can be turned on well in advance; they will sleep until they receive a wake command from the 18R2.
2. Power on the 18R2. Confirm the device count matches the number of modules in the field.
3. Cycle through all the channels on your 18R2, checking the continuity of each cue in your show, also confirming module signal values by pressing the SYNC button on the remote.
4. If conditions are safe, turn each module key to ARM. Press ARM on the remote and wait for the ARM LED to turn solid red and displays the correct module count. It should take about 1-2 seconds per module to appear on the 18R2. If after an extended period of time the 18R2 displays an address, it is notifying you that the module with this address may have the key in the test position.
5. Press TEST/DISARM on the remote to disarm the system until you are ready to shoot.

Final Checklist

Just before firing:

• Ensure all modules are on and in ARM.
• Verify the device count on the 18R2 matches expectations.
• Confirm the Audio Box has the correct MP3 file loaded (if used). This should have also been confirmed when dry running your show.
• Review safety zones and ensure crew know emergency procedures.
• When ready to shoot, power modules to ARM, press ARM on the 18R2 and wait for the ARM LED to turn solid red. If after an extended period of time the 18R2 displays an address, it is notifying you that the module with this address may have the key in the test position.

Manual Firing

1. Press ARM on the remote to ready your modules.
2. Wait for the ARM count to show the correct number of modules in your show, and the ARM LED on the 18R2 to go solid. If after an extended period of time the 18R2 displays an address, it is notifying you that the module with this address may have the key in the test position.
3. Select a channel and press the cue number(s) to fire in real time.

Scripted Shows

1. Verify script continuity (green LEDs) and fix any red LEDs.
2. When ready, arm the system (modules in ARM, ARM LED solid).
3. Wait for the ARM count to show the correct number of modules in your show, and the ARM LED on the 18R2 to go solid. It should take about 1-2 seconds per module to appear on the 18R2. If after an extended period of time the 18R2 displays an address, it is notifying you that the module with this address may have the key in the test position.
4. Navigate to the trigger channel. Press the trigger button to start the show.
5. Watch the countdown display and cue LEDs on the 18R2 for real-time feedback. Use the Control Panel for additional monitoring or to manually fire cues.

Handling Mid-Show Issues

• Pause: Press ARM/Pause to temporarily stop a script. Press again to resume.
• Abort: Press TEST/DISARM to disarm all modules immediately. To resume later, re-arm and restart the script. Press the STEP button multiple times to catch up to the point you left off.
• Disable modules or groups (firmware 7.1+): Use the Control Panel to disable individual modules or groups of scripted events (e.g., high wind effects) during a show.

Cleaning & Long-Term Care

• Wipe gear with a damp cloth; avoid harsh chemicals.
• Clear cue receptacles with compressed air or a cloth.
• Recharge or remove batteries when storing equipment. Follow LiPo Battery Best Practices.
• Store gear in a dry, climate-controlled environment.

Troubleshooting Damaged Modules

For water or heat damage:

• Wet modules: Do not power on. Disconnect power, remove any visible water and let the module dry completely. Watch for corrosion. Contact support if corrosion is present.
• Burned modules: Do not power on. Disconnect power. Wipe off smoke residue with a soft, dry cloth. Replace the battery even if it appears intact and contact support for further guidance.

Adding More Modules

The 18R2 supports up to 200 channels for a total of 3,600 cues across all module types. Adding modules gives you:

• More flexibility: Fire from multiple positions without long igniter leads.
• More unique cues: Each module or module bank can have its own channel and supports 18 cues.
• More power: Each module has its own power source, allowing more igniters at once.
• Redundancy: Extra modules provide backups in case of failure.

Using Slats

A slat is an unpowered circuit board that mirrors a module's cues. It allows one module to fire effects from multiple positions at once. Learn more about slat wiring.

• Benefits: Lower cost than full modules, protects the module by moving igniter connections away from it, shortens igniter leads and allows pre-wiring with shunts (check local regulations for transport).
• Considerations: Slats share the module's power; long cable runs and many igniters add resistance. Proper shunting and wiring are essential.
• Series vs parallel slats: Series slats are better for long cable runs and make defective igniters easy to spot, but a single bad igniter can prevent firing. Parallel slats are easier to wire and tolerant of faulty igniters, but support fewer igniters over long runs.

Using Breakout Boards

Breakout boards connect multiple igniters to a single cue via quick-plug connectors. All connected igniters fire at once. You can use them directly on modules or on slats.

Combining Slats and Breakout Boards

When using quick-plug slats, you can add breakout boards to wire multiple igniters per cue. Make sure the wiring on the board matches the wiring on the slat (series or parallel).

Choosing a Slat Cable

Resistance affects how many igniters you can fire from a cue. Heavy duty (22 AWG) cables add less resistance than light duty (24 AWG). Shorter cables allow you to fire more igniters.

Audio Accessories

• Audio Box: Plays an MP3 soundtrack in sync with a script. The Audio Box includes and LCD screen and standard LiPo battery.
• 18R2 SMPTE Upgrade Kit: Adds support for SMPTE timecode to the 18R2 so you can sync scripts with professional audio, lighting or video systems. Requires firmware 5.1+.

Remote Accessories

• Deadman Control: A handheld trigger that must be held for scripts to run. Includes STEP and ALTERNATE buttons for scripting. Only works with scripted shows.
• Control Panel Gen 2: Android app that expands the 18R2 display to a tablet. Provides device lists, show controls, random show generator and disable groups (firmware 5.0+). Requires a license.
• Command Center: All-in-one workstation for the 18R2 and Control Panel tablet. Houses the remote, optional booster, tablet mount and Deadman control with a built-in battery.
• COBRA Show Operator (CSO): PC/Mac software for controlling your show. Provides a device list and will gain features over time. Currently free in beta.

Module Upgrades

• DMX Upgrade Kit: Adds DMX output to a 36M or 72M so you can control lights, flame projectors and other special effects. Scripts are required for DMX devices.
• Armored Cases & Boots: Protect your modules from water, impacts and weather. Available for 18M, 36M and 72M modules and the 18R2.

Signal Accessories

• Signal Booster: A 3W amplifier that extends range; recommended for long distances or radio-busy environments.
• Dish Antenna: Focuses the signal in one direction; useful for modules far away along a straight line.

Power Options

• LiPo upgrade kits: Add rechargeable Li-ion batteries to the 18M or older Audio Boxes.
• Chargers: Single, 5-way and 10-way LiPo chargers are available.

Checking Firmware Version

When you power on a COBRA device the firmware version appears during startup (e.g., 6.1.3). The first two numbers are the major and minor version (the firmware family); the third is a device-specific revision. Modules must share the same family to sync together. Check firmware compatibility before syncing.

Release Notes and Updates

COBRA publishes release notes for stable and beta firmware versions. These notes highlight new features, improvements and important fixes.

Upgrading Firmware

Upgrading moves a device to a new firmware family. The upgrade procedure uses a Wireless Reprogrammer and the COBRA Reprogramming Software (CRS) to update the device transceiver, plus a USB cable to update the processor on devices with USB ports.

Applying Patch Updates

Patch updates fix specific issues within a firmware family. These are often applied using only a USB thumb drive. When COBRA announces a patch release they provide instructions and required files.

Syncing and Power Issues

Even with careful preparation, issues can occur. This section lists common problems and general solutions:

• Module won't sync: Ensure both devices are in program mode and running compatible firmware families. Let modules complete their startup sequence before holding SYNC. Learn more about sync troubleshooting.
• Module powers off: Check battery levels, battery orientation and terminals. Replace batteries or use external power if supported.
• ER1 / ER2 on power-on: Verify voltage mode, battery orientation and battery health.
• ER3 on power-on: Ensure no buttons are pressed during boot and check keys are not pinched under the faceplate.

Firing and Continuity Issues

• Poor signal: Avoid obstacles like metal, walls or terrain. Use antenna extensions or relocate modules for better line of sight.
• Cue didn't fire: Confirm the cue was scripted and wired. If firing manually, ensure you were on the correct channel. Check for loose or mis-wired igniters.
• Series slat shows no continuity: Confirm shunts are installed and that the same cues are wired on all slats in the run.
• Audio Box skips: Verify MP3 formatting, use a COBRA or SanDisk USB and add silence at the start of your track to prevent initial glitches.

Frequently Asked Questions

• Can I mix different module types? Yes. 6M, 18M, 36M and 72M modules can be used together if they share the same firmware family.
• Do I need to re-sync modules after every show? No. Sync is retained until you clear it, update firmware or sync to a new remote.
• How do I contact support during a show? Use COBRA's emergency support line, listed on the Contact Us page.