Universal Load Controller vs Bolt Hunter

Universal Load Controller — Professional Battery Testing Control your Atorch DL24 / DL24P electronic load from your iPhone or iPad for precise battery capacity testing, logging and analysis. BEFORE YOU BUY — COMPATIBILITY iOS cannot use classic Bluetooth SPP, which is what the stock DL24/DL24P Bluetooth module uses. Please check the following list first. WORKS FULLY — DL24 firmware v5.1 (+ BLE serial adapter) • Direct setpoints: discharge current and cutoff voltage sent from the app • Start / stop of the load from the app • Read-back of the applied settings • Automated multi-phase test cycles (discharge, rest, ramp) • Live values, charts, capacity/energy logging, CSV and PDF export WORKS WITH LIMITS — DL24 firmware v1.1 (legacy) • Firmware v1.1 accepts button emulation only: SETUP, OK/On-Off, +/- • It does NOT accept direct commands for exact current or cutoff values • Therefore automated app cycles are blocked on v1.1 by design — the app tells you instead of applying a wrong setpoint to your cell • Recommended use: set current and cutoff manually on the DL24, then use the app in Manual mode for live values, timing, logging, charts and export • Select "Firmware v1.1" in Settings, Protocol, so the app uses the matching command set DOES NOT WORK • Stock classic-Bluetooth (SPP) module: iOS does not allow regular apps to use SPP. A BLE serial module or BLE-to-serial bridge is required. • USB / HID connection to the load (iOS has no equivalent of the vendor PC app) • CR / CP / CV modes: the Atorch protocol exposes only constant current (CC). Other modes can neither be read nor set — by any app, on any firmware. • iOS 16 or older — this app requires iOS 17.0 or newer. REQUIRED HARDWARE FOR A REAL CONNECTION • Atorch DL24 / DL24P electronic load, plus one of: - a BLE serial module (HM-10 or compatible, service FFE0 / characteristic FFE1) in place of the classic Bluetooth module, or - an external BLE-to-serial bridge exposing FFE0/FFE1 or the Nordic UART Service (6E400001-B5A3-F393-E0A9-E50E24DCCA9E) • Related Atorch meters advertising as DL24P, DL24_BLE, DL24, AT24, UD24, UD18 or DT24 are detected during the scan, but only the DL24 load family is supported for control. NO HARDWARE? Simulation Mode runs the complete app with a realistic simulated discharge, so you can evaluate every screen before buying an adapter. FEATURES BATTERY TESTING • Constant-current discharge with adjustable cutoff voltage • Real-time voltage, current, power and temperature • Capacity (mAh) and energy (Wh) measurement • Time and capacity limits LIVE DATA • Real-time discharge curves with zoom and pan • Voltage, current and capacity plots • Live Activity on the Lock Screen, Always-On Display and Dynamic Island • Home Screen widgets for the running test • Background Bluetooth so a test keeps logging TEST CYCLES (firmware v5.1) • Presets for LiPo, Li-Ion, LiFePO4 and NiMH • Custom cycles with discharge, rest and ramp phases EXPORT • CSV export of the full measurement log • PDF test report with the run summary • Share sheet support for both Perfect for battery capacity verification, cell matching and sorting, quality control, hobby electronics and lab use. SAFETY: You are testing real cells at real currents. Always verify current and cutoff values on the device itself, use protected cells or a current-limited bench setup, keep physical access to the load's stop control, and never leave a running test unattended. Universal Load Controller is an independent app. It is not affiliated with, endorsed by, or supported by Atorch.

Bolt Hunter is a companion app for the Bolt Hunter lightning camera trigger. This app is used to configure and control your Bolt Hunter, allowing you to capture lightning with precise timing and improved reliability. Key Features: - Connect to your Bolt Hunter device via Bluetooth - Adjust sensitivity and trigger settings - Control interval shooting modes - Configure Night Mode and exposure behavior - Calibrate camera shutter lag - Monitor device status and settings in real time - View real-time lightning data to improve your settings Important: This app requires a Bolt Hunter device to function. Hardware is sold separately. Bolt Hunter is designed for photographers who want consistent lightning captures without missed shots, in both daytime and nighttime conditions.