#wirelesscontrol

Looking for a smarter way to control your devices remotely? The 4G/2G Pico 2-Channel Relay is here to transform home automation, industrial control, and IoT projects! 🌍✨

✅ Remote Control via 4G/2G network ✅ Dual Relay Channels for flexible automation ✅ Secure & Reliable connection ✅ Perfect for IoT, Smart Homes & Industrial Use

Back this innovative project now on Kickstarter and be part of the future of automation! 🚀🔥

👉 Check it out here! -Kickstarter

Tired of digital noise, intrusive tracking, or unwanted wireless interference? Meet JammerMFG.com — your global source for professional-grade signal management solutions, designed for privacy protection, testing, and controlled environments.

🔒 Why People Choose JammerMFG

At JammerMFG, we focus on responsible, research-based use of signal blockers for:

✅ Secure meetings & testing labs – prevent unauthorized data leaks

✅ Education & demonstrations – study wireless communication safely

✅ Personal privacy control – manage unwanted signals in private areas

✅ Vehicle and warehouse signal isolation – for industrial optimization

Every device is built with precision-tuned antennas, modular frequency control, and adjustable output power, helping you create the right protection radius — from personal pocket jammers to multi-antenna 5G blockers.

🌍 Why Shop at JammerMFG

Global shipping within 7–12 days

Secure payment & discreet packaging

One-year product warranty

Expert customer support in multiple languages

Whether you’re an engineer, researcher, or privacy-conscious individual — jammermfg.com gives you the freedom to explore, test, and control your wireless environment responsibly.

🔗 Explore More

Looking for a smarter way to control your devices remotely? The 4G/2G Pico 2-Channel Relay is here to transform home automation, industrial control, and IoT projects! 🌍✨

✅ Remote Control via 4G/2G network ✅ Dual Relay Channels for flexible automation ✅ Secure & Reliable connection ✅ Perfect for IoT, Smart Homes & Industrial Use

At first sight

The power supply is based on the MP023 chip. It is a one-cycle DC-DC controller created by Monolithic Power Systems in 2016.

Schematic: Input → filter → bridge rectifier  → flyback converter with rectifier working for the output C-filter.

From the converter output, the voltage comes to the PWM modulator unit based on the Silicon Labs EFR32 "Wireless Gecko" module.

Luminaires are connected to the modulator output via the output connector.

The marking on the power supply case: λ>0.8, and the coefficient value hints at a passive corrector.

The radio elements are assembled neatly. The circuit board has no electrical defects, and the connection quality is good everywhere.

Test results

• The pulsation value as a fraction means that the voltage has pronounced HF (numerator) and LF (denominator) components.

• The hottest component in the power supply is the output rectifier diode. The measurement is taken with the cover removed.

• The overcurrent protection is triggered at an output current of 1.3A, first limiting the current; then, when the voltage drops to 17 V, it goes into start-stop mode.

Output voltage pulsations

Slow sweep waveforms

Fast sweep waveforms

Conclusions

• This power supply has a high level of output voltage ripple. If it were not for the built-in wireless control module, this power supply would be trashed. BTW, if you want to reprogram the wireless control module, check out the articles here (in new tab) and here (in new tab).

• The element heating at full load and with the cover off is 154 F, which gives some reserve.