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# [DIY Kit Name] — Build Guide
**Version:** [v1.0]
**Date:** [YYYY-MM-DD]
**Author:** [Name / Contact]
---
## 1. Introduction
- What this kit does (short description).
- Skill level required (Beginner / Intermediate / Advanced).
- Estimated build time: [X hours].
- Tools required: [Soldering iron, multimeter, etc.].
---
## 2. Circuit Description
### 2.1 General Idea
- Short explanation of the concept.
- Example: *The kit demonstrates low-power control using an ATtiny85 microcontroller. It blinks an LED in Morse code and sleeps when ambient light is detected.*
### 2.2 Annotated Schematic
*(Insert schematic image exported from KiCad, e.g., as PNG or PDF)*
Use numbered blocks for explanation. Example:
**Figure 1: Schematic with annotation numbers**
| Block | Circuit Section | Description |
|:-----:|:------------------|:------------------------------------------------------------------------------------------------------|
| 1 | Power Supply | 2×AA batteries → DC/DC regulator (U1) → 5 V rail. Decoupling capacitors (C1, C2) smooth the voltage. |
| 2 | Controller | ATtiny85 (U2) running firmware. Pull-up resistors (R1, R2) ensure stable inputs. |
| 3 | LED Output | LED D1 driven by PB0. Current limited by R3 (330 Ω). |
| 4 | Light Sensor | LED D2 reverse biased → generates photocurrent. Read on PB2. |
| 5 | Programming Header| ISP 6-pin header for flashing firmware. |
| 6 | Test Points | Labeled pads J1–J3 for debugging with a multimeter. |
*(Link to the KiCad schematic file in Git repo, e.g.: [GitHub/Gitea link])*
### 2.3 Functional Flow
- Add a block diagram showing logic signal flow (KiCad → export block diagram or draw in Mermaid).
- Example: *Battery → DC/DC → ATtiny85 → LED driver → LED.*
---
## 3. Mechanical Parts
### 3.1 2D CAD Files
- Mechanical drawings in DXF for front panel / housing.
- Dimensions, hole positions, and cut-outs for connectors.
### 3.2 3D Models
- STL/STEP files for 3D printing, if available.
- Assembly orientation, support recommendations.
*(Link to repo with mechanical CAD files.)*
---
## 4. Kit Contents
*(BOM table)*
---
## 5. Safety Notes
⚠️ Soldering involves heat. Work on a non-flammable surface.
⚠️ Observe polarity on diodes, electrolytic capacitors, and ICs.
---
## 6. Assembly Instructions
*(step-by-step with images/photos)*
---
## 7. First Power-Up
*(preconditions + test steps)*
---
## 8. Adjustments / Calibration
*(potentiometer trim, jumper setting, firmware config)*
---
## 9. Troubleshooting
*(table with symptoms and remedies)*
---
## 10. Next Steps / Modifications
*(extensions, software mods, hardware mods)*
---
## 11. Resources
- **Git Repository:** [link]
- **KiCad Project Files:** [link]
- **DXF Mechanical Files:** [link]
- **STL/3D Models:** [link]
- **Firmware Source Code:** [link]
- **Datasheets:** [links]
---
## 12. Document Control
| Version | Date | Author | Changes |
|:-------:|:----------:|:-----------|:------------------------------------------|
| 1.0 | YYYY-MM-DD | [Name] | Initial release |

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# [Project Name] — Technical Manual
**Device:** [Device Name]
**Version:** [Document Version]
**Date:** [YYYY-MM-DD]
**Author:** [Name / Contact]
**Reviewed by:** [Reviewer]
---
## 1. Purpose and Scope
- **Purpose:** Short description of what the device does.
- **Scope:** Define the application area.
- **Target Audience:** Who should use this manual (e.g., service technicians, engineers).
- **Limitations:** What is not covered or not allowed.
---
## 2. Safety Information
⚠️ **Read before use!**
### 2.1 General Safety
- Only trained personnel may operate the device.
- Follow standard ESD and laboratory safety rules.
### 2.2 Electrical Safety
- Max. internal voltage: [X V].
- Use only insulated test leads and approved measurement devices.
### 2.3 Residual Risks
- [List possible hazards in failure scenarios.]
---
## 3. Device Overview
### 3.1 Description
Short text describing device and functionality.
### 3.2 Front Panel Elements
| ID | Name | Function |
|:-----:|:------------------|:--------------------------|
| SW1 | Channel Switch 1 | Activates channel 1 |
| LED1 | Status LED | Indicates request active |
| J1.1 | Connector | Test input/output |
### 3.3 Block Diagram
*(Insert diagram or schematic here)*
---
## 4. Intended Use
- The device is designed only for [specific purpose].
- Any other use is not permitted and voids responsibility of manufacturer.
---
## 5. Setup and Operation
### 5.1 Preconditions
- Batteries charged.
- All switches OFF.
### 5.2 Step-by-Step Procedure
| Step | Action | Expected Result | Remarks |
|:-----:|:----------------------------------|:----------------------|:--------------------------|
| 1 | Switch ON | LED lights green | — |
| 2 | Connect test cable J1.0 red/black | Channel LED active | — |
| 3 | Trigger tool GUI request | LED1 ON | Only one channel active |
*(Add additional steps as needed)*
---
## 6. Maintenance and Troubleshooting
### 6.1 Maintenance
- Replace fuse [specification].
- Replace batteries [specification].
### 6.2 Troubleshooting
| Symptom | Possible Cause | Remedy |
|:--------------------------|:------------------|:----------------------------------|
| No LED response | Battery empty | Replace batteries |
| Incorrect channel active | Miswiring | Check tool GUI configuration |
---
## 7. Technical Data
| Parameter | Value |
|:------------------|:------------------|
| Supply Voltage | [X V] |
| Fuse | [specification] |
| Battery | [type] |
| Max. current | [value] |
| Dimensions | [mm] |
| Weight | [g] |
---
## 8. References and Resources
- CAD files: [Link]
- Schematics: [Link]
- Git repository: [Link]
---
## 9. Document Control
| Version | Date | Author | Changes |
|:-------:|:----------:|:-----------|:------------------------------------------|
| 1.0 | YYYY-MM-DD | [Name] | Initial release |

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