Summary of TTGO ESP32-S2 WIFI IOT BOARD OFFERS AN OPTIONAL MICROSD CARD WITH A BATTERY SUPPORT
Summary: LilyGO released TTGO ESP32-S2 boards resembling the ESP32-S2-Saola-1 form factor but with a different pinout. Two variants exist: ESP32-S2W WOOR (simpler, uses ESP32-S2WROOM module) and TTGO ESP32-S2 ESP32-S (feature-rich, uses ESP32-SC WiSoC). Both use an ESP32-S2 single-core LX7 SoC, 8 MB PSRAM, 4 MB flash, 2.4 GHz Wi-Fi, USB-C with CH340C for programming, and differ by antenna type and an optional MicroSD socket and battery connector on the fuller-featured model.
Parts used in the TTGO ESP32-S2:
- Espressif ESP32-S2 single-core 32-bit Tensilica LX7 processor (SoC)
- 320 kB SRAM
- 128 kB ROM
- 8 MB PSRAM
- 4 MB flash
- MicroSD card socket (XY-ESP32-S only)
- 2.4 GHz 802.11b/g/n WiFi radio
- PCB antenna (XY-ESP32-S-WOOR)
- 3D antenna (XY-ESP32-S)
- USB-C port
- CH340C USB to TTL chip
- Battery cell connector (on the board with more features)
For a while now, most popular ESP32-S2 boards available in the market are produced by Espressif Systems. This includes the ESP32-S2-Saola-1 and ESP32-S2-Kaluga-1. However, there is a new LilyGO TTGO ESP32-S2 board for sale.
This micro board is much the same to the ESP32-S2-Saola-1 board, and it is produced in two versions, and features the same form factor, but the TTGO ESP32-S2 has a completely different pinout, and enables a MicroSD card socket and a battery cell connector on one of the boards.
At first glance, it is easy to differentiate the two boards. The board with simple features is known as “ESP 32-S2 ESP32- S- WOOR,” and it is designed with ESP32-S2W ROOM component. However, the board with more features is the “TTGO ESP32-S2 ESP32-S,” which has its own integrated circuits designed around ESP32-SC WiSoc. The TTGO ESP32-S2 boards have many similar specs. They include:
- SoC – Espressif Systems ESP32-S2 single-core 32-bit Tensilica LX7 processor having 320 kB SRAM, 128 kB ROM
- System Memory – 8MB PSRAM
- Storage – 4MB flash; XY-ESP32-S only: MicroSD card socket
- Connectivity
- -2.4GHz 802.11b/g/n WiFi 4 connectivity
- -Antenna
- (i) XY-ESP32-S-WOOR: PCB antenna on module
- (ii)XY-ESP32-S:”3D” antenna
- USB – 1x USB-C port for power and programming via CH340C USB to TTL chip
- Expansion
Read more: TTGO ESP32-S2 WIFI IOT BOARD OFFERS AN OPTIONAL MICROSD CARD WITH A BATTERY SUPPORT
- What SoC does the TTGO ESP32-S2 use?
It uses the Espressif ESP32-S2 single-core 32-bit Tensilica LX7 processor. - How much PSRAM is included on the TTGO ESP32-S2?
The boards include 8 MB PSRAM. - Does the TTGO ESP32-S2 have onboard flash storage?
Yes, it comes with 4 MB flash. - Which board variant includes a MicroSD card socket?
The XY-ESP32-S variant includes the MicroSD card socket. - What wireless connectivity is supported?
They support 2.4 GHz 802.11b/g/n WiFi. - What antennas are used on the different variants?
XY-ESP32-S-WOOR uses a PCB antenna on the module; XY-ESP32-S uses a 3D antenna. - What USB interface is provided for power and programming?
A USB-C port is provided for power and programming via the CH340C USB to TTL chip. - Do any TTGO ESP32-S2 boards support a battery connector?
Yes, the fuller-featured board includes a battery cell connector.
