Every detail, engineered.
One coinslot drives your entire shop. Up to 10–20 tablets share a single ESP32 unit, fewer devices to wire, fewer devices to maintain, and a noticeably lower power bill every month.
1 coinslot, up to 20 tablets
One ESP32 coinslot unit services the whole shop. Less hardware to buy, less wiring to run, less to go wrong.
Lower power consumption
Fewer powered coinslot units means a measurably lower electricity bill, especially relevant for shops running 15+ machines.
Device Owner kiosk lockdown
Real system-level lockdown on every device. No accessibility hacks. Reboots survive, users can't escape the kiosk.
Easy to maintain
Centralised hardware means one point of maintenance. Fix or replace the coinslot once, all tablets benefit immediately.
OTA updates
Push APK updates to every tablet from the dashboard. No USB cables, no store visits. All units on the latest build in minutes.
Hardware watchdog
ESP32 v20d firmware with non-blocking WiFi reconnect, exponential backoff, and watchdog timer. Stable through brownouts.
Each tablet runs its own dedicated coinslot. The simplest possible setup: plug in, install, go. Perfect for operators starting small or running a few standalone machines.
1 coinslot per tablet
Each machine is fully self-contained. Simple wiring, simple setup, no network dependency between units.
More affordable license
Lower per-unit license cost. Ideal for operators who want to start with one or two tablets and grow at their own pace.
Device Owner kiosk lockdown
Same real system-level lockdown as Centralized. Reboots survive, the kiosk stays locked no matter what.
Atomic pulse counting
ESP32 firmware uses microsecond-debounced ISR with atomic snapshots. Coins counted correctly, even on dirty power.
Floating admin panel
PIN-gated bubble with full controls per unit. Triple-tap the timer to open the operator's command center, always on screen.
Hardware watchdog
Same ESP32 v20d firmware, non-blocking WiFi, watchdog timer, brownout-resilient. Rock-solid per unit.
Actual hardware wiring photos of your coinslot components connected with color-coded wires. Follow the lines to set up the coinslot side of your PisoLock hardware.
ℹ Same wiring diagram for both — only the firmware (.ino file) is different. Flash the right one based on your setup.
Hardware checklist for the coinslot side. Same parts list for both Centralized and Non-Centralized setups — only the firmware (.ino) is different.
1 set of hardware above serves up to 10–20 tablets. Buy 1 coinslot + 1 ESP32 + 1 buck converter total.
You'll need 1 set per device. Each tablet has its own coinslot, ESP32, and buck converter.
Smart charging wiring: the 5V relay automatically cuts 220V AC power to the charger when the timer expires, so the device stops charging on its own. Follow the lines to wire the smart charging side of your PisoLock hardware.
Hardware checklist for the smart charging feature. Note this uses a separate ESP32C3 Super Mini — different from the coinslot ESP32.
⚠ Safety: This circuit switches 220V AC mains. If you're not comfortable working with AC wiring, hire a qualified electrician. Always test with the relay BEFORE connecting AC live wires.
💡 Optional add-on: Smart charging works on top of either Centralized or Non-Centralized setup. You'll need 1 smart charging set per tablet/phone you want to auto-cut.
If 2N2222 is unavailable in your area, any of these NPN transistors will work as a drop-in replacement — same TO-92 package, same pinout (Emitter · Base · Collector), enough current to drive the 5V relay coil through a 1KΩ base resistor:
⚠ Important: Always verify the pinout on the datasheet before soldering — some transistors (like S9013, S9014) use a different pin order than 2N2222.
Step-by-step video tutorials and demos. Watch how to install, configure, and manage PisoLock on your device.
Step-by-step walkthrough of installing the PisoLock app on your Android device. Watch the full reel on Facebook.
Complete walkthrough of the PisoLock app settings. Learn how to configure each option properly for your setup.
How to configure PisoLock in Centralized mode. Connect and manage multiple kiosk units from one admin dashboard.
Step-by-step guide on entering and activating your PisoLock license key after purchase. Get your device running in minutes.
Safe method to remove the PisoLock app without damaging your tablet settings. Step-by-step guide for operators.