Never Guess Your Powder Charge Again
PowderSense is a precision powder measurement device that fits in station 4 of your progressive press, keeping track of all your loads with high precision. Features a 16-bit ADC, displays measurements with 0.001 grain precision after calibration, and includes an embedded web console for configuration and data logging.
Key Features
🎯 High Precision
0.0146mm theoretical precision using 16-bit ADC (ADS1115) with 0.001 grain display resolution
📊 Real-Time Monitoring
1.47" TFT LCD display with visual feedback (blue/green/red) for low/perfect/high measurements
📡 WiFi & Web Console
Embedded web console for real-time configuration, data logging, CSV export, and remote monitoring via WiFi
⚙️ Configurable
Multiple measurement profiles with customizable thresholds and automatic stability detection
🔓 Open Source
Complete documentation, 3D files, firmware, and assembly guide on GitHub
🔧 Universal Fit
Designed for 9mm, but works with other calibers with a simple probe swap
Technical Specifications
| Measurement Range | 0-60mm |
| Resolution | 0.0146mm (theoretical) |
| Accuracy | ±0.1mm (after calibration) |
| Display | 1.47" TFT LCD (ST7789, 172x320) |
| Microcontroller | ESP32-C6 (Waveshare LCD 1.47) |
| WiFi | 802.11 b/g/n (2.4GHz) |
| Power Supply | 5V USB-C |
| Operating Temperature | 0-50°C |
Get PowderSense
About PowderSense
Hi, I'm Henry from the Netherlands! I've been reloading for about a year now on an RCBS Pro 2000 progressive press. When I started, I noticed that all steps in a progressive press are pretty straightforward except for one... Once the powder is dispensed, you're never 100% certain how much powder is actually in your case.
That's when I decided to build PowderSense - a precision powder measurement device that fits in station 4 of my press. It features an embedded web console that lets you configure settings, monitor measurements in real-time, and export your reloading data. Due to license restrictions here in the Netherlands, I'm only allowed to reload 9mm (the only caliber I own), but with a simple probe swap, other calibers should work just fine.
I've made the project fully open-source for anyone who wants to build one themselves, or you can purchase a pre-assembled and tested unit. By purchasing a pre-built unit, you support continued development of this open source project!
Contact: order@powdersense.nl