Both antennas. One board.
Onboard antenna and external antenna connector. No separate versions to choose between.
DEVELOPMENT BOARDS![Series[D]](/images/logos/series_d_logo_grey.svg)
BY UNEXPECTED MAKER
BY UNEXPECTED MAKERYour projects are screaming for these.
10 boards and modules. Compare the range, explore the specs and find the right fit for your project.
Switch in software.
Change antennas from your code, even while your code is running.
Know your battery.
An I²C fuel gauge for battery monitoring, plus onboard LiPo charging.
Compare the boards.
Scroll sideways to compare all 10 boards ↔| Find your next board. | TinyC6[D] | TinyPICO[D] | TinyPICO Nano | OMGS3 | NanoS3 | EdgeS3[D] | TinyS3[D] | FeatherS3[D] | FeatherS3 Neo | ProS3[D] |
|---|---|---|---|---|---|---|---|---|---|---|
| MCU | ESP32-C6 | ESP32-PICO-D4 | ESP32-PICO-D4 | ESP32-S3-PICO | ESP32-S3FN8 | ESP32-S3-PICO | ESP32-S3FN8 | ESP32-S3 | ESP32-S3-PICO-1 | ESP32-S3 |
| Flash | 8 MB | 4 MB | 4 MB | 8 MB | 8 MB | 8 MB | 8 MB | 16 MB | 8 MB | 16 MB |
| PSRAM | None | 4 MB | 4 MB | 2 MB | 8 MB | 2 MB | 8 MB | 8 MB | 2 MB | 8 MB |
| Available IO | 17 | 14 | 27 | 17 | 27 | 29 + 8 | 17 | 21 | 21 | 27 |
| 2.4 GHz Wi-Fi | Wi-Fi 6 | Wi-Fi 4 | Wi-Fi 4 | Wi-Fi 4 | Wi-Fi 4 | Wi-Fi 4 | Wi-Fi 4 | Wi-Fi 4 | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | BLE 5.3 | Classic BT + BLE 4.2 | Classic BT + BLE 4.2 | BLE 5 + Mesh | BLE 5 + Mesh | BLE 5 + Mesh | BLE 5 + Mesh | BLE 5 + Mesh | BLE 5 + Mesh | BLE 5 + Mesh |
| Zigbee / Thread | Zigbee + Thread | — | — | — | — | — | — | — | — | — |
| Format / connection | TinyPICO format | TinyPICO format | Surface-mount module | Surface-mount module | Surface-mount module | M.2 B-Key module | TinyPICO format | Feather format | Feather format | Pins + castellated edges |
| USB | USB-C · Serial/JTAG | USB-C · USB-to-serial | Via carrier · USB-to-serial | Via carrier · USB OTG / Serial / JTAG | Via carrier · USB OTG / Serial / JTAG | Via carrier · USB OTG / JTAG | USB-C · OTG / Serial / JTAG | USB-C · OTG / Serial / JTAG | USB-C · OTG / Serial / JTAG | USB-C · OTG / Serial / JTAG |
| 3.3 V regulators | 1 × 700 mA | 1 × 700 mA | 1 × 700 mA | 1 × 700 mA | 1 × 700 mA | 1 × 700 mA | 1 × 700 mA | 2 × 700 mA | 2 × 700 mA | 2 × 700 mA |
| STEMMA QT | — | — | — | — | — | — | — | 2 · separate power rails | 1 · main power rail | 1 · main power rail |
| RGB LED | NeoPixel | NeoPixel | — | NeoPixel | NeoPixel | — | NeoPixel | NeoPixel | NeoPixel + 7 × 7 matrix | NeoPixel |
| Antenna | Onboard + u.FL · software switch | Onboard + u.FL · software switch | Onboard | Onboard | Onboard or external u.FL | Onboard + u.FL · software switch | Onboard + u.FL · software switch | Onboard + u.FL · software switch | Onboard | Onboard + u.FL · software switch |
| Battery | I²C fuel gauge + LiPo charging | I²C fuel gauge + LiPo charging | LiPo charging | I²C fuel gauge + LiPo charging | LiPo charging | I²C fuel gauge + LiPo charging | I²C fuel gauge + LiPo charging | I²C fuel gauge + LiPo charging | ADC voltage sensing + LiPo charging | I²C fuel gauge + LiPo charging |
| Size | 36.3 × 17.8 mm | 36.3 × 17.8 mm | 27 × 13 mm | 25 × 10 mm | 28 × 12.7 mm | 22 × 23 mm | 36.3 × 17.8 mm | 52.3 × 22.9 mm | 52.3 × 22.9 mm | 55 × 17.8 mm |
| Get yours | Buy | Buy | Buy | Buy | Buy | Buy | Buy | Buy |
Drag to compare all boards
TinyC6[D]
ProcessorESP32-C6
160 MHz RISC-V + 20 MHz low-power core
Flash8 MB
QSPI
PSRAMNone
GPIO17
Wireless
Wi-Fi 6 2.4 GHz·BLE 5.3·Zigbee + Thread
- USB
- USB-C · power, programming and Serial/JTAG
- Power
- 700 mA · 3.3 V regulator
- Onboard
- NeoPixel RGB LED
- Format
- Breadboard friendly TinyPICO compatible footprint
- Size
- 36.3 × 17.8 mm
![TinyC6[D] pinout](/images/pinouts/TinyC6D_pinout.webp)
TinyPICO[D]
ProcessorESP32-PICO-D4
Dual-core LX6 · up to 240 MHz
Flash4 MB
QSPI
PSRAM4 MB
QSPI
GPIO14
Wireless
Wi-Fi 4 2.4 GHz·Classic BT + BLE 4.2
- USB
- USB-C · power and USB-to-serial programming
- Power
- 700 mA · 3.3 V regulator
- Onboard
- NeoPixel RGB LED
- Format
- Breadboard friendly
- Size
- 36.3 × 17.8 mm
![TinyPICO[D] pinout](/images/pinouts/TinyPICOD_pinout.webp)
TinyPICO Nano
Buy TinyPICO NanoProcessorESP32-PICO-D4
Dual-core LX6 · up to 240 MHz
Flash4 MB
QSPI
PSRAM4 MB
QSPI
GPIO27
Wireless
Wi-Fi 4 2.4 GHz·Classic BT + BLE 4.2
- USB
- USB-to-serial programming · add a USB connector
- Power
- 700 mA · 3.3 V regulator with enable control
- Battery
- LiPo charging · battery connection on VBAT pad
- Antenna
- Onboard antenna
- Format
- 1.27 mm castellated edges for surface mounting
- Size
- 27 × 13 mm
OMGS3
Buy OMGS3ProcessorESP32-S3-PICO
Dual-core LX7 · up to 240 MHz
Flash8 MB
QSPI
PSRAM2 MB
QSPI
GPIO17
Wireless
Wi-Fi 4 2.4 GHz·BLE 5 + Mesh
- USB
- Native OTG / Serial / JTAG · D+/D− pads
- Power
- 700 mA · 3.3 V regulator
- Battery
- LiPo charging + I²C fuel gauge · battery pads
- Antenna
- Onboard high-gain antenna
- Onboard
- Low-power NeoPixel RGB LED
- Format
- 1.27 mm underside pads · surface mount or solder wires
- Size
- 25 × 10 mm
NanoS3
Buy NanoS3ProcessorESP32-S3FN8
Dual-core LX7 · up to 240 MHz
Flash8 MB
QSPI
PSRAM8 MB
QSPI
GPIO27
Wireless
Wi-Fi 4 2.4 GHz·BLE 5 + Mesh
- USB
- Native OTG / Serial / JTAG · D+/D− pads
- Power
- 700 mA · 3.3 V regulator
- Battery
- LiPo charging · add external voltage sensing if needed
- Antenna
- Either onboard antenna or external antenna via u.FL
- Onboard
- Low-power NeoPixel RGB LED
- Format
- 1.27 mm castellated edges · TinyPICO Nano compatible
- Size
- 28 × 12.7 mm
EdgeS3[D]
Buy EdgeS3[D]ProcessorESP32-S3-PICO
Dual-core LX7 · up to 240 MHz
Flash8 MB
QSPI
PSRAM2 MB
QSPI
GPIO29
Wireless
Wi-Fi 4 2.4 GHz·BLE 5 + Mesh
- Expansion
- 8 additional IO from the onboard expander
- USB
- Native OTG / Serial / JTAG through the carrier
- Power
- 700 mA · 3.3 V regulator · USB ESD protection
- Connection
- Removable M.2 B-Key module
- Size
- 22 × 23 mm
Designed for a compatible carrier PCB, not a computer’s M.2 slot.
![EdgeS3[D] pinout](/images/pinouts/EdgeS3D_pinout.webp)
TinyS3[D]
Buy TinyS3[D]ProcessorESP32-S3FN8
Dual-core LX7 · up to 240 MHz
Flash8 MB
QSPI
PSRAM8 MB
QSPI
GPIO17
Wireless
Wi-Fi 4 2.4 GHz·BLE 5 + Mesh
- USB
- USB-C · native OTG / Serial / JTAG
- Power
- 700 mA · 3.3 V regulator with USB back-feed protection
- Battery
- Header connections + JST PH connector pads
- Onboard
- Low-power NeoPixel RGB LED
- Format
- Breadboard friendly TinyPICO compatible footprint
- Size
- 36.3 × 17.8 mm
![TinyS3[D] pinout](/images/pinouts/TinyS3D_pinout.webp)
FeatherS3[D]
Buy FeatherS3[D]ProcessorESP32-S3
Dual-core LX7 · up to 240 MHz
Flash16 MB
QSPI
PSRAM8 MB
QSPI
GPIO21
Wireless
Wi-Fi 4 2.4 GHz·BLE 5 + Mesh
- USB
- USB-C · native OTG / Serial / JTAG
- Power
- 2 × 700 mA · 3.3 V regulators. LDO2 software-controlled; off in deep sleep.
- Expansion
- 2 × STEMMA QT on separate IO and power rails
- Battery
- JST PH connector
- Onboard
- Low-power NeoPixel RGB LED
- Format
- Feather / FeatherWing compatible
- Size
- 52.3 × 22.9 mm
![FeatherS3[D] pinout](/images/pinouts/FeatherS3D_pinout.webp)
FeatherS3 Neo
Buy FeatherS3 NeoProcessorESP32-S3-PICO-1
Dual-core LX7 · up to 240 MHz
Flash8 MB
QSPI
PSRAM2 MB
QSPI
GPIO21
Wireless
Wi-Fi 4 2.4 GHz·BLE 5 + Mesh
- USB
- USB-C · native OTG / Serial / JTAG
- Power
- 2 × 700 mA · LDO2 powers RGB and light sensor; off in deep sleep
- Display
- 7 × 7 low-power RGB LED matrix · 49 pixels
- Expansion
- STEMMA QT on the main power rail
- Battery
- LiPo charging · JST PH connector + voltage sensing
- Onboard
- NeoPixel status LED + ambient light sensor
- Antenna
- Onboard high-gain antenna
- Format
- Feather / FeatherWing compatible · castellated headers
- Size
- 52.3 × 22.9 mm
ProS3[D]
Buy ProS3[D]ProcessorESP32-S3
Dual-core LX7 · up to 240 MHz
Flash16 MB
QSPI
PSRAM8 MB
QSPI
GPIO27
Wireless
Wi-Fi 4 2.4 GHz·BLE 5 + Mesh
- USB
- USB-C · native OTG / Serial / JTAG
- Power
- 2 × 700 mA · 3.3 V regulators. LDO2 software-controlled; off in deep sleep.
- Expansion
- STEMMA QT on main rail · headers and castellated edges for direct PCB mounting
- Battery
- PicoBlade connector
- Onboard
- Low-power NeoPixel · USB ESD protection · exposed JTAG
- Format
- Breadboard friendly TinyPICO compatible*
- Size
- 55 × 17.8 mm
![ProS3[D] pinout](/images/pinouts/ProS3D_pinout.webp)