DiamondLightSource/fastcs

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Control system agnostic framework for building device support in Python for both EPICS and Tango

Stars: 6
Forks: 8
Open beginner issues: 0
Indexed issues: 57
Avg merge: 2d 12h
Merged PRs (30d): 3

Dominant language: Python
License: Apache-2.0
Last GitHub push: Aug 13, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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57 open issues indexed

connections: introspection - a connection describing the device to `build` Open

decision

Difficulty 5/5 Over a week Newbie friendliness 25/100

DiamondLightSource/fastcs#428 · Opened Sep 10, 2026
controllers: ControllerRunner reconnect loop refactor Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

DiamondLightSource/fastcs#422 · 1 comment · Opened Sep 3, 2026
Failing to set path of root controller leads to unhelpful error message Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

DiamondLightSource/fastcs#416 · Opened Aug 5, 2026
DOCS: Rewrite tutorials around the examples/ controllers (one per example, single-sourced) Open

documentation

Difficulty 4/5 3-5 days Newbie friendliness 45/100

DiamondLightSource/fastcs#408 · Opened Jul 22, 2026
Add AutoSave Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

DiamondLightSource/fastcs#407 · 1 comment · Opened Jul 21, 2026
Define the top-level public API namespace (flat vs nested) Open

decision

Difficulty 5/5 Over a week Newbie friendliness 35/100

DiamondLightSource/fastcs#406 · 2 comments · Opened Jul 21, 2026
Example 4 — SCPI device: annotated attributes + per-attribute filler data Open

api-convergence

Difficulty 4/5 3-5 days Newbie friendliness 45/100

DiamondLightSource/fastcs#405 · 1 comment · Opened Jul 21, 2026
SPIKE (Opus/local): typed-command keyword-arg support via TYPE_CHECKING stub Open

spike

Difficulty 5/5 Over a week Newbie friendliness 35/100

DiamondLightSource/fastcs#403 · 1 comment · Opened Jul 21, 2026
[ophyd-async] Reconnect via connect(force_reconnect=True) + atexit shutdown Open

api-convergence

Difficulty 4/5 3-5 days Newbie friendliness 52/100

DiamondLightSource/fastcs#401 · Opened Jul 20, 2026
[ophyd-async] fastcs_connector URI scheme dispatch + "embedding FastCS" docs Open

api-convergence

Difficulty 4/5 3-5 days Newbie friendliness 52/100

DiamondLightSource/fastcs#400 · Opened Jul 20, 2026
[ophyd-async] Embedded FastCS connector (fastcs-embed extra) Open

api-convergence

Difficulty 5/5 Over a week Newbie friendliness 35/100

DiamondLightSource/fastcs#399 · 1 comment · Opened Jul 20, 2026
ophyd-async / FastCS API Convergence Open

Difficulty 5/5 Over a week Newbie friendliness 18/100

DiamondLightSource/fastcs#388 · 3 comments · 1 reaction · Opened Jul 13, 2026
Controller attribute references change after initialisation Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

DiamondLightSource/fastcs#387 · Opened Jun 24, 2026
Tango device TRL naming for hierarchical FastCS controllers — two options for community input Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

DiamondLightSource/fastcs#381 · 3 comments · Opened May 20, 2026
Consider removing the GraphQL transport until a concrete use case is defined Open

DiamondLightSource/fastcs#380 · 1 assignee · Opened May 20, 2026
EpicsDocsOptions defaults to writing .md files into cwd Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

DiamondLightSource/fastcs#379 · Opened May 20, 2026
REST Transport: Missing Features for Odin-Control Replacement Open

Difficulty 5/5 Over a week Newbie friendliness 48/100

DiamondLightSource/fastcs#378 · Opened May 19, 2026
Plugin mechanism for `Controller` subclasses via entry points Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

DiamondLightSource/fastcs#376 · Opened May 13, 2026
refactor(controllers): constructor-pass path, drop set_path() Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

DiamondLightSource/fastcs#373 · 1 comment · Opened May 7, 2026
Tutorial/demo TemperatureController.connect() never sets _connected so scan loop stays paused Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

DiamondLightSource/fastcs#372 · 1 comment · 1 reaction · Opened May 6, 2026
PRD: Multiple top-level Controllers with per-controller ids (#120) Open

enhancement needs design python

Difficulty 5/5 Over a week Newbie friendliness 25/100

DiamondLightSource/fastcs#351 · Opened May 5, 2026
Create `fastcs-serial` repo for serial devices without manufacturer library dependencies Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

DiamondLightSource/fastcs#348 · Opened Apr 22, 2026
Consider moving stdio-socket to optional dependency Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

DiamondLightSource/fastcs#345 · Opened Apr 14, 2026
Numeric initial_value should conform to its min/max limits Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

DiamondLightSource/fastcs#342 · Opened Mar 17, 2026
Add "What is FastCS" link and overview diagram to README Open

Difficulty 1/5 1-3 hours Newbie friendliness 62/100

DiamondLightSource/fastcs#341 · Opened Mar 17, 2026
Scan tasks can drift Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DiamondLightSource/fastcs#334 · Opened Mar 9, 2026
Transports need to handle exceptions from validation errors when calling Attribute.put Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

DiamondLightSource/fastcs#333 · Opened Mar 5, 2026
Reserved names in BaseController pollute driver attribute namespace Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

DiamondLightSource/fastcs#331 · 1 comment · Opened Mar 4, 2026
Dependency Dashboard Open

Difficulty 2/5 1-3 hours Newbie friendliness 15/100

DiamondLightSource/fastcs#329 · Opened Mar 1, 2026
Implement AttributeVector Open

needs design

Difficulty 4/5 3-5 days Newbie friendliness 48/100

DiamondLightSource/fastcs#327 · Opened Feb 27, 2026
Running FastCS demo against the sim fails due to GraphQL transport error Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DiamondLightSource/fastcs#324 · 1 reaction · Opened Feb 17, 2026
Change _update_datatype_callbacks to _on_update_datatype_callbacks Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

DiamondLightSource/fastcs#318 · Opened Feb 3, 2026
Clear bob files from screen directory Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DiamondLightSource/fastcs#312 · 2 comments · Opened Jan 26, 2026
Handle disconnects Open

needs design

Difficulty 5/5 Over a week Newbie friendliness 25/100

DiamondLightSource/fastcs#310 · 3 comments · 1 reaction · Opened Jan 22, 2026
Documentation improvements: new tutorials, explanations, and docstrings Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

DiamondLightSource/fastcs#309 · 1 comment · Opened Jan 22, 2026
CA Transport error for 2D waveforms does not specify if CA or PVA Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 25/100

DiamondLightSource/fastcs#301 · Opened Dec 23, 2025
Add a widget field to all DataTypes to allow overriding UI display Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

DiamondLightSource/fastcs#297 · Opened Dec 22, 2025
Split Waveform into Array1D and Array2D Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

DiamondLightSource/fastcs#296 · Opened Dec 22, 2025
CA Command PVs should be set back to zero when complete Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

DiamondLightSource/fastcs#291 · 10 comments · Opened Dec 15, 2025
Replace Enum with IntEnum and StrEnum Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

DiamondLightSource/fastcs#290 · Opened Dec 15, 2025
Add Alarms Open

needs design

Difficulty 5/5 Over a week Newbie friendliness 15/100

DiamondLightSource/fastcs#286 · Opened Dec 11, 2025
Improve default behaviour of generated UIs Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

DiamondLightSource/fastcs#255 · Opened Oct 31, 2025
Call transport.serve with create_task instead of gather Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

DiamondLightSource/fastcs#242 · Opened Oct 27, 2025
P4P tests are a bit slow Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

DiamondLightSource/fastcs#181 · Opened Aug 7, 2025
Document an approach to in cluster development of a fast CS IOC Open

DiamondLightSource/fastcs#179 · 1 comment · 1 assignee · Opened Aug 6, 2025
Document an approach to debugging FastCS IOCs in cluster. Open

DiamondLightSource/fastcs#178 · 2 comments · 1 assignee · Opened Aug 6, 2025
Create a helm chart for fast CS IOCs Open

DiamondLightSource/fastcs#177 · 3 comments · 1 assignee · Opened Aug 6, 2025
Document convention on Enum key-value naming Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

DiamondLightSource/fastcs#175 · 10 comments · Opened Aug 5, 2025
Ease the transition from pythonSoftIOC to FastCS Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

DiamondLightSource/fastcs#165 · 2 comments · Opened Jun 30, 2025
Add OpenTelemetry tracing of function calls from transport user input to controller IO call Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

DiamondLightSource/fastcs#155 · Opened May 18, 2025

DiamondLightSource/fastcs

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