---
product_id: 759223
title: "Function Generator DIY KIT by JYE Tech FG085"
brand: "kuman"
price: "R391"
currency: ZAR
in_stock: true
reviews_count: 4
url: https://www.desertcart.co.za/products/759223-function-generator-diy-kit-by-jye-tech-fg085
store_origin: ZA
region: South Africa
---

# 5 waveform types Microsecond pulse control User-defined arbitrary waveforms Function Generator DIY KIT by JYE Tech FG085

**Brand:** kuman
**Price:** R391
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your lab’s potential with DIY signal precision!

## Quick Answers

- **What is this?** Function Generator DIY KIT by JYE Tech FG085 by kuman
- **How much does it cost?** R391 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/759223-function-generator-diy-kit-by-jye-tech-fg085)

## Best For

- kuman enthusiasts

## Why This Product

- Trusted kuman brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Signal Mastery:** Create and tweak your own arbitrary waveforms for ultimate experimental control.
- • **Intuitive Rotary Encoder:** Fine-tune frequency, amplitude, and offset with smooth incremental adjustments.
- • **Microsecond Pulse Control:** Program pulse width, amplitude, and cycle with microsecond resolution for servo testing.
- • **Precision Frequency Sweeps:** Set start/stop frequencies and sweep rates independently for dynamic testing.
- • **Versatile Waveform Arsenal:** Generate sine, square, triangle, ramp, and staircase signals effortlessly.

## Overview

The JYE Tech FG085 Function Generator DIY Kit is a compact, affordable tool designed for electronics hobbyists and students. It supports five continuous waveform types plus user-defined arbitrary waveforms, frequency sweeping, and microsecond-resolution pulse control. While assembly requires care, especially with pushbutton alignment, it offers versatile signal generation capabilities ideal for experimental and educational use.

## Description

The FG085 is a low cost yet versatile function generator capable of producing signals of many different waveforms. As an easy-to-use tool operation of FG085 is very simple and straightforward. It is an ideal test/experiment tool for electronic hobbyists and students. This is the kit version for paneled FG085. Special attention is required at installing the pushbuttons. Please read the Assembly Guide carefully before starting installation includes: Power supply and output cable

Review: Great kit, great price - Let's not fool ourselves - this isn't a top-of-the-line signal generator, but for general-purpose hobbyist use it is perfectly fine, and the price point is excellent. It took a couple of hours to put together, and worked first time. The printed instructions area little sparse in detail, but were more than enough for me to build without problems. A couple of pieces of advice: The alignment of the pushbutton switches is critical. there is a surprisingly tight fit of the front panel over the switches. Due to my sloppy soldering of one switch, I had to take my Dremel to the panel hole. Also, power up the unit before fitting the back plate, as you will need to adjust the contrast of the LCD display using the small preset, which will be covered by the back panel.
Review: Short life - The kit was easy to build and worked well initially. After several months the operation became unstable. It was impossible to select the function. I searched for bad solder joint and was not able to resolve the problem. Now looking for another signal generator which is better quality. I would not recommend this product.

## Features

- Generating continuous waveforms of Sine, Square, Triangle, Ramp (up and down), and Staircase (up and down)
- Generating user defined arbitrary waveforms (AWG)
- Generating frequency sweeping signals of selected waveforms. Start frequency, stop frequency, and sweep rate can be independently set
- Generating servo test/control signals in micro-second resolution with user programmable pulse width, amplitude, and cycle
- Frequency (period), amplitude, and offset can be incrementally adjusted with rotary encoder

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C5UO8U6 |
| Date First Available | April 3, 2013 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.8 ounces |
| Manufacturer | JYE Tech |
| Product Dimensions | 5 x 4 x 2 inches |

## Images

![Function Generator DIY KIT by JYE Tech FG085 - Image 1](https://m.media-amazon.com/images/I/511e0tMb4tL.jpg)
![Function Generator DIY KIT by JYE Tech FG085 - Image 2](https://m.media-amazon.com/images/I/51PSOvquLcL.jpg)
![Function Generator DIY KIT by JYE Tech FG085 - Image 3](https://m.media-amazon.com/images/I/61JO+WEF8UL.jpg)
![Function Generator DIY KIT by JYE Tech FG085 - Image 4](https://m.media-amazon.com/images/I/816sN8uW1ZL.jpg)

## Questions & Answers

**Q: Why is there no frequency range and the output types . Very poor spec. overview**
A: These are batch produced in China they aren't that bad.  A complete spec list can be found at https://www.sparkfun.com/products/11394

**Q: Is there an enclosure for this kit?**
A: Unfortunately there is not.  However, I created one that you can download for free from https://www.thingiverse.com/thing:688659 and 3D print for personal use, or you can get a 3D printed copy from http://shpws.me/Fbn5 in various colors.

**Q: Is it normal that the front panel is plain brown? is this some kind of protective cover that I can't decipher how to remove? Or is it defective?**
A: That is just a protective peel away cover. Carefully snag a corner and gently peel off.

**Q: No background in electronics, sorry if this is basic! i need alternate current w/ freq. of 1khz & voltage of 5v to power a device. can this help me?**
A: According to the product page on sparkfun, It can be used as a power supply. It really depends on what your load current is. The wall adapter is 1A so this is obviously the upper limit for output current. Based on the opamp used in the schematic, the output current max is 100mA. Expect a unusable wave form at this load however. A safer bet would be about 50mA. Probably not useful.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great kit, great price
*by S***C on March 6, 2014*

Let's not fool ourselves - this isn't a top-of-the-line signal generator, but for general-purpose hobbyist use it is perfectly fine, and the price point is excellent. It took a couple of hours to put together, and worked first time. The printed instructions area little sparse in detail, but were more than enough for me to build without problems. A couple of pieces of advice: The alignment of the pushbutton switches is critical. there is a surprisingly tight fit of the front panel over the switches. Due to my sloppy soldering of one switch, I had to take my Dremel to the panel hole. Also, power up the unit before fitting the back plate, as you will need to adjust the contrast of the LCD display using the small preset, which will be covered by the back panel.

### ⭐⭐ Short life
*by O***L on September 3, 2022*

The kit was easy to build and worked well initially. After several months the operation became unstable. It was impossible to select the function. I searched for bad solder joint and was not able to resolve the problem. Now looking for another signal generator which is better quality. I would not recommend this product.

### ⭐ Documentation a complete fail.
*by M***E on May 29, 2015*

Documentation is a complete fail. This kit reminds me of the saying "Buy once, cry once". I was evaluating various hobby-level function generators in the $250-$500 price range. I came across this kit and figured "gee, if it's only $50 bucks, what can go wrong?" My instincts told me, don't buy it, my greediness won out. I really don't know if the thing works well or not. I started putting it together following the instructions as best I could. However, there is an "Important Notice" about the switches that is *NOT* in line with the assembly instructions warning you that the push button switches only go in one way. I totally missed this. Sadly, I soldered in around 25 switches, luck would have all but about 5 were backwards. Ever tried to unsolder 300 pins? Well, let's just say I'm not even going to try, I'm just throwing the board away and will resume looking for a decent function generator. I realize the engineer who wrote the assembly instructions is probably not a native speaker. But something important like this needs a *MUCH* bigger warning. Also, isn't there *some* other part that will do the same function as these push buttons that is polarized and not possible to put in backwards? This is an epic design fail; these parts might be okay for a production line, but not for one-off kits. I realize this is my own fault for not reading the assembly instructions as closely as I needed to before soldering down those switches. However, if you find yourself mesmerized by the low price, be sure to read the assembly instructions over three or four times before soldering anything in place. Also, make sure you have a very thin point soldering iron and high-gauge solder. The pins are small and very close together. You're best advised to use a magnifying glass while working on the switches and check for solder bridges (that seem to form quite easily on the switch terminals).

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-21*