# BlueIOPin — I-SYST BlueIOPin

> I-SYST BlueIOPin (iPhone/iPad app by I-SYST Inc..)

- Source: https://appshunter.io/ios/app/blueiopin/id6502845532 (this page in markdown: same URL + `.md`)
- Developer: [I-SYST Inc.](https://appshunter.io/developer/1588443075)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 11 MB
- Languages: English
- Released: 2024-05-19
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/blueiopin/id6502845532/reviews.md

## What is BlueIOPin?

BlueIOPin app allows users to connect with the BlueIO832Mini board of I-SYST Inc to control and setting pins of the BlueIO832Mini board as follows:

• Pins (D0-D5) can be individually configured as digital input/output terminal and PWM
1. Digital Input
• The app reads and displays the selected pin’s value
• Polling mode: User presses a button in the app to read a pin’s value
• Notification: The firmware automatically sends a notification to the app whenever a pin’s value change is detected
2. Digital Output
• The app controls the pin output digital value (0/1)
3. Pulse Width Modulation (PWM) signal generation
• Duty cycle (0-100%)
• Clock polarity (0-LOW, 1-HIGH)
• 3 PWM groups where each group:  Output up to 4 pins with different duty cycles, and has individual frequency
• Frequency (1Hz ~ 4MHz)


## Version history (last 2 releases)

### 2.0 — 2026-04-14

- Unified and modernized user interface that emphasizes individual pin configuration for both GPIO and PWM settings
- More intuitive Bluetooth scanning and connection process
- Tutorial page to explain how to use the app even at a beginner level

### 1.0 — 2024-05-20

No release notes.

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## More apps by I-SYST Inc.

- [BluePyro](https://appshunter.io/ios/app/bluepyro/id1588443073)
- [BlueIOTerm](https://appshunter.io/ios/app/blueioterm/id1618808817)
- [BlueIOSigCap](https://appshunter.io/ios/app/blueiosigcap/id1644728526)
- [BlueIODevin](https://appshunter.io/ios/app/blueiodevin/id6465289458)

All apps by I-SYST Inc.: https://appshunter.io/developer/1588443075

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-16.*