LilyGO has started offering the TTGO T4, an ESP32-based single-board computer (SBC). Equipped with a colour display on one side, the TTGO T4 also comes with Bluetooth and Wi-Fi connectivity, plus a microSD card reader and a 20-pin GPIO header, among other features. The LilyGO TTGO T4 starts at US$26.98 with a 2.4-inch display and is orderable now.