Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | STM32F103C8T6 |
| Input Voltage Range | 5V - 30V DC |
| Output Voltage Range | 0.5V - 30V DC |
| Max Output Current | 3A Continuous |
| Topology | Bidirectional Buck-Boost |
| Control Interface | OLED Display + Rotary Encoder |
| Communication Protocol | UART, I2C, SPI |
| PCB Dimensions | 85mm x 55mm |
| Protection Features | Over-current, Over-voltage, Thermal Shutdown |
| Primary Application | Power Electronics Education & Prototyping |
Anonymous
Mar 14, 2026
Rating: 5/5
Robust design for prototyping
We bought five of these for our makerspace. They have survived multiple wiring mistakes by beginners thanks to the protection circuits. The digital control aspect is a great teaching point.
Anonymous
Mar 09, 2026
Rating: 5/5
Excellent stability under load
I tested this with various loads up to 2.5A and the voltage regulation remained stable. The buck-boost transition is smooth. A fantastic tool for university labs.
Anonymous
Mar 07, 2026
Rating: 4/5
Great hardware, steep learning curve
The build quality is solid and the components are genuine. However, if you are new to STM32, be prepared to spend some time reading the documentation. Once set up, it works flawlessly.
Anonymous
Mar 07, 2026
Rating: 4/5
Good value for money
For the price, you get a lot of functionality. The rotary encoder feels a bit light, but it gets the job done. The ability to program custom control loops via STM32 is the real winner here.
Anonymous
Mar 06, 2026
Rating: 5/5
Ideal for academic projects
I use this in my senior design course. It allows students to experiment with PID tuning and digital power supply concepts without building everything from scratch. Very satisfied.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for learning power electronics
This board is exactly what I needed to understand bidirectional converters. The STM32 code is well-commented, and the OLED display makes monitoring voltage and current very easy. Highly recommended for students.
Q: Can this board charge a battery while powering a load?
A: Yes, due to its bidirectional nature, it can manage power flow between a source and a battery. However, you must implement the specific charging algorithm (like CC/CV) in the STM32 firmware yourself.
Q: Can I control the output voltage remotely via PC?
A: Absolutely. The board features a UART interface. You can connect it to a PC using a USB-to-TTL adapter and send commands to adjust voltage, current limits, and read telemetry.
Q: Is a heatsink included or required for 3A output?
A: The PCB has generous copper pours for thermal management. For continuous operation at 3A, we recommend adding a small clip-on heatsink to the MOSFETs, which are not included but fit standard TO-220 packages.
Q: What is the switching frequency of the converter?
A: The default switching frequency is set to 100kHz in the demo firmware, but since it is digitally controlled by the STM32, you can reconfigure this in the software to suit your specific inductor and capacitor choices.
Q: Does this board come with pre-flashed firmware?
A: Yes, the board comes with basic demo firmware that allows immediate operation via the OLED menu. Source code is available for download to modify or learn from.
Michelin Tires 225 235 245 255 275/45 50 55 60R17 18 19 20 21 Run-Flat
$400.00
Narrow Gap Storage Rack for Behind Toilet - Bathroom Organizer Cabinet, Plastic Floor-Standing Unit for Restroom or Balcony
$24.20
Authentic Kayou Ultraman Cards - Zero & Tiga Classic Edition Full Box Deluxe Set with Max Star Cards (10 Yuan Pack)
$8.50
![[800N] Electric Wrench Pure Copper Brushless Lithium Battery Electric Wrench for Scaffolders, Carpenters, and Auto Mechanics](https://www.gosteppe.com/cache/small/product/269958/legacy-main-ec3c299e01aeec8ca2d4d9fb.webp)
[800N] Electric Wrench Pure Copper Brushless Lithium Battery Electric Wrench for Scaffolders, Carpenters, and Auto Mechanics
$287.00
Aromatherapy Candle Essential Oil, Soluble Fragrance Oil, Lily and Mint Scent, High Concentration Diffuser Stone and Soap DIY Material
$3.90
Disiple Commercial Fried Chicken Warmer with Heat Lamp for Egg Tarts, Chestnuts, and Sweet Potatoes
$1,045.00
Baby Rattle with Chewable Goat Skin - Traditional Wooden Hand-Shaken Toy for Newborns
$8.42
Low-Temperature 3D Stereoscopic Drawing Pen for Kids, 3D Printing Pen Consumables PCL Filament Coil
$10.20
GHL Small Wet Mixing Granulator Chicken Essence Feed Pelletizer Lab High-Speed Wet Mixing Granulator
$36,000.00
![[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement 1000 Grafts](https://www.gosteppe.com/cache/small/product/269952/legacy-main-dcbe0d97f2626dd23efe098f.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement 1000 Grafts
$14,000.00
![[Folded Book] Zhao Mengfu Running Script: Zhi Zhai Ji - Complete Original-Size Calligraphy Masterpiece in Accordion Binding](https://www.gosteppe.com/cache/small/product/269951/legacy-main-dcc7bccd2c0e53c519ed3ca3.webp)
[Folded Book] Zhao Mengfu Running Script: Zhi Zhai Ji - Complete Original-Size Calligraphy Masterpiece in Accordion Binding
$15.10
Aizaofang Four-Connected Flower Elf Oval Flower DIY Handmade Soap Silicone Mold New Bar Soap Silicone Mold
$16.10
Ruitai Dental Korean Implant System Package
$3,980.00
Dental Implant Package - Full Mouth Zirconia Crowns by Dilic for Missing Teeth Replacement
$10.00
Adjustable Over-Toilet Storage Rack for Bathroom Floor Standing Space Saving Organizer
$147.20
Flake Soy Wax & White Bees Wax Pellets – DIY Cup Candle Making Kit with Strawberry Scented Mold and Raw Materials
$5.34
Manufacturer Supply FF High-Speed Dispersing Kettle - Stainless Steel Reactor for Paint, Ink, and Chemical Mixing Equipment
$9,104.80
Mia Bouncy Sketch Blending Cotton Sponge Ball Paper Stump Water-Absorbent Sponge New Art Tool Washable Magic Cotton for Students
$4.80
Yucheng 1606 Fast-Drying Acrylic Adhesive - Odorless, Non-Whitening Glue for Acrylic Bonding
$21.20
Magnetic Storage Shelf Cute Building Block Magnetic Organizer Box Refrigerator Decorative Sticker Cling Film Holder Wall-Mounted Fridge Magnet
$3.80
Commercial Countertop Fried Chicken Warmer Cabinet Hamburger Egg Tart Heating Constant Temperature Box Multi-Function Insulated Display Case for Fried Foods
$620.00
Rectangular Silicone Mold for DIY Handmade Soap
$16.80
Leqin 495 Super Glue - 20g Transparent Fast-Drying Adhesive for Hard Plastics, Metal, Wood, PVC, and Rubber
$25.84
New Chinese Style Zen Calligraphy Felt Mat, Non-Slip Desk Pad for Traditional Writing Tools
$16.50
LB-8001 Inline Water Sampler - Mixed Water Sample Retention Instrument
$10,312.16
Mont Marte Children's Paint Brush Set - Toddler Tempera and Watercolor Brushes, Beginner Fan Brushes, Graffiti Tools
$7.00
Alumina Hollow Sphere Bricks, Castables, High-Temperature Mullite Bricks, High-Alumina Lightweight Insulating Bricks
$124.53
Natural Crystal Lemon Yellow Azeztulite Round Beads for DIY Jewelry Making, Bracelets, and Necklaces
$0.74
Fast Stair-Climbing Folding Hand Truck, Portable Shopping Cart for Groceries and Luggage
$304.08
Yonghe Hair Transplant: Shaved Method for Large-Area Top Density Enhancement - Unlimited Grafts by Director Team
$19,800.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
