AI4AVSummary
Optoma EX765 and EW766 are DLP projectors supporting RS-232 control via a 5-pin mini DIN connector. The protocol uses 9600 baud 8-N-1 serial with ASCII command codes terminated by <CR> (0x0D). The projector responds with OK or F (fail) for write commands, and OK<value> for read queries. No authentication is required.
Transport
protocols:
- serial
serial:
baud_rate: 9600
data_bits: 8
parity: none
stop_bits: 1
flow_control: none
fifo: disabled # UART16550 FIFO disabled per source
auth:
type: none # inferred: no auth procedure in source
Traits
- powerable
- routable
- queryable
- levelable
Actions
- id: power_on
label: Power On
kind: action
params: []
- id: power_off
label: Power Off
kind: action
params: []
- id: resync
label: Resync
kind: action
params: []
- id: av_mute_on
label: AV Mute On
kind: action
params: []
- id: av_mute_off
label: AV Mute Off
kind: action
params: []
- id: mute_on
label: Mute On
kind: action
params: []
- id: mute_off
label: Mute Off
kind: action
params: []
- id: freeze
label: Freeze
kind: action
params: []
- id: unfreeze
label: Unfreeze
kind: action
params: []
- id: zoom_plus
label: Zoom Plus
kind: action
params: []
- id: zoom_minus
label: Zoom Minus
kind: action
params: []
- id: pan_up
label: Up (Pan under zoom)
kind: action
params: []
- id: pan_down
label: Down (Pan under zoom)
kind: action
params: []
- id: pan_left
label: Left (Pan under zoom)
kind: action
params: []
- id: pan_right
label: Right (Pan under zoom)
kind: action
params: []
- id: select_input
label: Select Input
kind: action
params:
- name: input
type: integer
description: Input number 1-13
values:
1: HDMI
2: DVI-D
5: VGA 1
6: VGA 2
7: VGA 1 SCART
8: VGA 1 Component
9: S-Video
10: Video
11: Wireless (EX765W/EW766W only)
13: VGA 2 Component
- id: display_mode
label: Display Mode
kind: action
params:
- name: mode
type: integer
description: Display mode 1-6
values:
1: Presentation
2: Bright
3: Movie
4: sRGB
5: User1
6: User2
- id: brightness_set
label: Set Brightness
kind: action
params:
- name: value
type: integer
description: Brightness 0-100
- id: contrast_set
label: Set Contrast
kind: action
params:
- name: value
type: integer
description: Contrast 0-100
- id: sharpness_set
label: Set Sharpness
kind: action
params:
- name: value
type: integer
description: Sharpness 0-31
- id: color_adjust
label: Color Adjustment
kind: action
params:
- name: parameter
type: string
description: Color parameter name
- name: value
type: integer
description: Parameter value (range varies)
- id: brilliantcolor_set
label: Set BrilliantColor
kind: action
params:
- name: value
type: integer
description: BrilliantColor 0-10
- id: degamma_set
label: Set Degamma
kind: action
params:
- name: mode
type: integer
values:
1: Film
2: Video
3: Graphics
4: PC
- id: color_temp_set
label: Set Color Temperature
kind: action
params:
- name: mode
type: integer
values:
1: Warm
2: Medium
3: Cold
- id: color_space_set
label: Set Color Space
kind: action
params:
- name: mode
type: integer
values:
1: Auto
2: RGB
3: YUV
- id: aspect_ratio_set
label: Set Aspect Ratio / Format
kind: action
params:
- name: ratio
type: integer
values:
1: 4:3
2: 16:9-l
3: 16:9-ll / 16:10 (WXGA)
5: LBX (WXGA projector only)
6: Native
7: Auto
- id: overscan_set
label: Set Overscan
kind: action
params:
- name: value
type: integer
description: Overscan 0-3
- id: zoom_set
label: Set Zoom
kind: action
params:
- name: value
type: integer
description: Zoom 0-20
- id: v_image_shift_set
label: Set Vertical Image Shift
kind: action
params:
- name: value
type: integer
description: Vertical Image Shift 0-100
- id: v_keystone_set
label: Set Vertical Keystone
kind: action
params:
- name: value
type: integer
description: Vertical Keystone -40 to 40
- id: language_set
label: Set Language
kind: action
params:
- name: lang
type: integer
values:
1: English
2: German
3: French
4: Italian
5: Spanish
6: Portuguese
7: Polish
8: Dutch
9: Swedish
10: Norwegian/Danish
11: Finnish
12: Greek
13: Traditional Chinese
14: Simplified Chinese
15: Japanese
16: Korean
17: Russian
18: Hungarian
19: Czechoslovak
20: Arabic
21: Thai
- id: projection_mode_set
label: Set Projection Mode
kind: action
params:
- name: mode
type: integer
values:
1: Front-Desktop
2: Rear-Desktop
3: Front-Ceiling
4: Rear-Ceiling
- id: menu_location_set
label: Set Menu Location
kind: action
params:
- name: location
type: integer
values:
1: Top Left
2: Top Right
3: Centre
4: Bottom Left
5: Bottom Right
- id: signal_freq_set
label: Set Signal Frequency
kind: action
params:
- name: value
type: integer
description: Frequency -100 to 100
- id: phase_set
label: Set Phase
kind: action
params:
- name: value
type: integer
description: Phase 0-63
- id: h_position_set
label: Set H. Position
kind: action
params:
- name: value
type: integer
description: Horizontal Position -100 to 100
- id: v_position_set
label: Set V. Position
kind: action
params:
- name: value
type: integer
description: Vertical Position -100 to 100
- id: security_timer_set
label: Set Security Timer
kind: action
params:
- name: months
type: integer
description: Month (00-99)
- name: days
type: integer
description: Day (00-29)
- name: hours
type: integer
description: Hour (00-23)
- id: security_enable
label: Security Enable
kind: action
params: []
- id: security_disable
label: Security Disable
kind: action
params: []
- id: projector_id_set
label: Set Projector ID
kind: action
params:
- name: id
type: integer
description: Projector ID 01-99
- id: mute_on_set
label: Mute On (Video)
kind: action
params: []
- id: mute_off_set
label: Mute Off (Video)
kind: action
params: []
- id: volume_set
label: Set Volume
kind: action
params:
- name: value
type: integer
description: Volume 0-10
- id: logo_set
label: Set Logo
kind: action
params:
- name: logo
type: integer
values:
1: Optoma
2: User
- id: logo_capture
label: Logo Capture
kind: action
params: []
- id: rs232_port_set
label: Set RS232 Port
kind: action
params:
- name: port
type: integer
values:
1: RS232
2: Network
- id: closed_captioning_on
label: Closed Captioning On
kind: action
params: []
- id: closed_captioning_off
label: Closed Captioning Off
kind: action
params: []
- id: audio_input_set
label: Set Audio Input
kind: action
params:
- name: input
type: integer
values:
1: Default
2: RCA
3: mini Audio IN 1
4: mini Audio IN 2
- id: source_lock_set
label: Source Lock
kind: action
params:
- name: mode
type: integer
values:
0: Off
1: On
3: Next Source
- id: high_altitude_on
label: High Altitude On
kind: action
params: []
- id: high_altitude_off
label: High Altitude Off
kind: action
params: []
- id: information_hide_on
label: Information Hide On
kind: action
params: []
- id: information_hide_off
label: Information Hide Off
kind: action
params: []
- id: keypad_lock_on
label: Keypad Lock On
kind: action
params: []
- id: keypad_lock_off
label: Keypad Lock Off
kind: action
params: []
- id: background_color_set
label: Set Background Color
kind: action
params:
- name: color
type: integer
values:
1: Blue
2: Black
3: Red
4: Green
5: White
- id: direct_power_on_set
label: Direct Power On
kind: action
params:
- name: state
type: integer
values:
0: Off
1: On
- id: signal_power_on_set
label: Signal Power On
kind: action
params:
- name: state
type: integer
values:
0: Off
1: On
- id: auto_power_off_set
label: Set Auto Power Off
kind: action
params:
- name: minutes
type: integer
description: Minutes 0-180
- id: sleep_timer_set
label: Set Sleep Timer
kind: action
params:
- name: minutes
type: integer
description: Minutes 0-999
- id: eco_standby_set
label: Eco Standby (1W)
kind: action
params:
- name: state
type: integer
values:
0: Off
1: On
- id: lamp_hours_query
label: Query Lamp Hours
kind: action
params: []
- id: lamp_reminder_set
label: Lamp Reminder
kind: action
params:
- name: state
type: integer
values:
0: Off
1: On
- id: brightness_mode_set
label: Set Brightness Mode
kind: action
params:
- name: mode
type: integer
values:
0: STD
1: Bright
- id: lamp_reset
label: Lamp Reset
kind: action
params: []
- id: reset
label: Reset
kind: action
params: []
- id: color_reset
label: Color Reset
kind: action
params: []
- id: remote_key
label: Remote Key
kind: action
params:
- name: key
type: integer
description: Remote key code
values:
1: Power
2: Re-sync
3: Keystone +
4: Keystone -
5: AV Mute
7: Zoom
9: Volume +
10: Volume -
11: Enter
12: Menu
13: Left
14: Up
15: Right
16: Down
18: "1"
19: "2"
20: "3"
21: "4"
22: "5"
23: "6"
24: "7"
25: "8"
26: "9"
Feedbacks
- id: power_state
label: Power State
type: enum
values:
- "0"
- "1"
description: 0=Off, 1=On
- id: input_source
label: Input Source
type: enum
values:
- "0"
- "1"
- "2"
- "3"
- "4"
- "5"
- "6"
- "7"
description: 0=None, 1=DVI, 2=VGA1, 3=VGA2, 4=S-Video, 5=Video, 6=HDMI, 7=Wireless
- id: software_version
label: Software Version
type: string
description: Returns OK followed by 2-digit version
- id: display_mode_query
label: Display Mode (Query)
type: enum
values:
- "0"
- "1"
- "2"
- "3"
- "4"
- "5"
description: 0=None, 1=Presentation, 2=Bright, 3=Movie, 4=sRGB, 5=User1, 6=User2
- id: brightness_query
label: Brightness (Query)
type: integer
description: Returns OK followed by value 0-100
- id: contrast_query
label: Contrast (Query)
type: integer
description: Returns OK followed by value 0-100
- id: aspect_ratio_query
label: Aspect Ratio (Query)
type: enum
values:
- "0"
- "1"
- "2"
- "3"
description: 0=4:3, 1=16:9-l, 2=16:9-ll, 3=Window
- id: color_temperature_query
label: Color Temperature (Query)
type: enum
values:
- "0"
- "1"
- "2"
description: 0=Warm, 1=Medium, 2=Cold
- id: projection_mode_query
label: Projection Mode (Query)
type: enum
values:
- "0"
- "1"
- "2"
- "3"
description: 0=Front-Desktop, 1=Rear-Desktop, 2=Front-Ceiling, 3=Rear-Ceiling
- id: information_query
label: Information Query
type: string
description: "Format: OKabbbbccdddde - a=Power, bbbb=LampHour, cc=Source, dddd=FW version, e=Display mode"
- id: model_name_query
label: Model Name
type: enum
values:
- "1"
- "2"
description: "1=EX765, 2=EW766"
- id: projector_return
label: Projector Return
type: enum
values:
- OK
- F
description: Projector acknowledgement - OK on success, F on failure
- id: standby_status
label: Standby Status (Unsolicited)
type: enum
values:
- "0"
- "1"
- "2"
- "3"
- "4"
- "6"
- "7"
- "8"
description: "0=Standby, 1=Warming, 2=Cooling, 3=Out of Range, 4=Lamp Fail, 6=Fan Lock, 7=Over Temperature, 8=Lamp Hours Running Out"
Variables
# UNRESOLVED: no discrete settable parameters outside the action tree
Events
- id: standby_status_event
label: Standby Status Event
description: Automatically sent by projector when standby/warming/cooling/out of range
params:
- name: status
type: integer
values:
0: Standby
1: Warming
2: Cooling
3: Out of Range
4: Lamp Fail
6: Fan Lock
7: Over Temperature
8: Lamp Hours Running Out
Macros
# UNRESOLVED: no explicit multi-step macro sequences in source
Safety
confirmation_required_for:
- lamp_reset
- reset
- security_timer_set
interlocks: []
Notes
All ASCII commands are prefixed with ~XX where XX is the projector ID (00 = broadcast to all projectors). Commands are terminated with <CR> (0x0D). The projector returns OK followed by <CR> on success, or F followed by <CR> on failure. Read queries return OK<value><CR>.
Provenance
source_domains:
- optoma.co.uk
- region-resource.optoma.com
- optomaeurope.com
source_urls:
- https://www.optoma.co.uk/uploads/RS232/EW766W-RS232-en-GB.pdf
- https://region-resource.optoma.com/products/import/Documents/fcc27c8d-3ab3-462f-a7f3-ee35633fdb8c.pdf
- https://region-resource.optoma.com/products/import/Documents/cf45148a-8c4b-4489-8689-b9b1c8d09d14.pdf
- https://www.optomaeurope.com/uploads/RS232/EX765W-RS232-en.pdf
- https://www.optomaeurope.com/ContentStorage/Documents/59f0495a-e989-4ad6-8242-0425d997880a.pdf
retrieved_at: 2026-05-18T20:02:56.535Z
last_checked_at: 2026-06-10T00:54:48.364Z
Verification Summary
verdict: verified
checked_at: 2026-06-10T00:54:48.364Z
matched_actions: 70
action_count: 70
confidence: medium
summary: "All 70 spec actions matched source commands with verified parameters; source fully represented across SEND/REMOTE/READ sections. (8 unresolved item(s) noted in Known Gaps.)"
Known Gaps
- "WAN/network control not documented in source"
- "power-on sequencing and warm-up/cool-down timing not stated"
- "lamp hour limit and replacement procedure not stated"
- "no discrete settable parameters outside the action tree"
- "no explicit multi-step macro sequences in source"
- "network/RS232 port switching command (~XX86) — source lists RS232 and Network as options but no Network protocol details provided"
- "lamp life and replacement procedure not stated"
- "firmware version range for compatibility not stated"
From the AI4AV catalog (https://ai4av.net) · ODbL-1.0