XLink brings dual-network resilience to eSim

Someone Turned a Raspberry Pi Game Boy Into a DIY Cyberdeck

A maker transforms a Raspberry Pi gaming handheld into a DIY cyberdeck with GPS, Wi-Fi, a camera, and an ESP32. See the community build.

You, too, can build this cute ESP32 internet radio controllable with just a dial

All of your fave tunes, all of the time.

I put a temperature sensor in every room, and my thermostat had been lying about my house for years

My Nest only knew the hallway, and a $40 sensor proved the hallway was the wrong room

5 ESP32 projects that can run on batteries for a whole year

Making your ESP32 projects last a year just requires simple tweaks

Toddler Phone Calls Family And No One Else

A hobbyist built a toddler-safe telephone that can only call pre-set family contacts. An ESP32-S3 acts as a USB host for a commercial retro-style handset and runs a minimal SIP client connecting over WiFi to a VoIP account, in this case Twilio. There are no inbound calls, so there's no risk of scam calls. Each contact gets an arcade button that lights up based on that contact's time zone, and a text-to-speech voice announces network errors or when it isn't call time.

5 ESP32 projects that replace smart home gadgets you'd otherwise pay a subscription for

Why pay a premium for smart devices when an ESP32 and some cheap sensors can do everything for a fraction of the price?

MQTT Doesn't Have Message Queues. Inside the 2-Byte Protocol Powering Modern IoT.

A visual, 10-minute architectural deep dive into MQTT. Learn how the 2-byte binary wire protocol, QoS 0/1/2 handshakes, topic trees, Last Will and Testament, and MQTT v5 Shared Subscriptions actually deliver IoT telemetry under the hood. Tagged with iot, networking, architecture, mqtt.

Deki Engine – ESP32 gets an open source Unity-style editor and C++ 2D game engine

Deki Engine la mot C++ engine mo nguoi voi giao trinh truy cap theo kieu Unity cho thiet bi embedded, da duoi uu cho ESP32. No cung cap truong hop su dung cho ESP32-S3, ESP32-C3 va ESP32-S2, trong do ESP32-S3 duoc toi uu nhieu nhat. Engine nay su dung cong nghe Entity Component System (ECS) de quan ly doi tuong, cung nhu ho tro giao dien UI tu Unity cho phep lap trinh trong Unity va xuat code ra ESP32. Neu ban dang tim kiem giai phap Game Engine cho ESP32, Deki Engine la mot lua chon tu nhien voi API tuong thich Unity va hoan toan mo nguoi.

Deki Engine mang đến cho lập trình viên Unity một công cụ lập trình game C++ trực quan trên nền tảng ESP32 với trình chỉnh sửa đồ họa tương tự Unity.