> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # ESP32-C3-MINI-1-N4 Module (PCB antenna) **Type:** Product page · **SKU:** DFR0809 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia) **Page:** https://core-electronics.com.au/esp32-c3-mini-1-n4-module-pcb-antenna.html ([markdown](https://core-electronics.com.au/esp32-c3-mini-1-n4-module-pcb-antenna.html.md)) ESP32-C3-MINI-1 are a general-purpose Wi-Fi and Bluetooth LE modules. The rich set of peripherals and a small size make the two modules an ideal choice... ## Pricing - **Price:** $8.60 (inc GST) — $7.82 AUD, exc GST - **Quantity discounts:** 6+ $7.43 (exc GST) · 12+ $7.12 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 2 today, and up to 250 more in 8–12 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR0809:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/DFR0809:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description **Introduction**ESP32-C3-Mini-1 is a universal Wi-Fi and low power Bluetooth LE module. The rich set of peripherals and a small size make the two modules an ideal choice for smart homes, industrial automation,health care, consumer electronics, etc. ESP32-C3-MINI-1-N4 is equipped with ESP32-C3FN4 chip and equipped with 4 MB embedded flash, belonging to esp32-C3 series chip. ESP32-C3 series of chips have a 32-bit RISC-V single-core processor. They integrate a rich set of peripherals, ranging from UART, I2C, I2S, remote control peripheral, LED PWM controller, general DMA controller, TWAI® controller, USB Serial/JTAG controller, temperature sensor, and ADC. It also includes SPI, Dual SPI and Quad SPI interfaces. **Pin Layout** ![ESP32-C3-MINI-1-N4 Module (PCB antenna)](https://core-electronics.com.au/attachments/localcontent/Pinout_104564f7560.png) **Pin Description** | **Name** | **No.** | **Type** | **Function** | |---|---|---|---| | GND | 1,2,11,14,36-53 | P | Ground | | 3V3 | 3 | P | Power supply | | NC | 4,7,9,10,15,17,24, | — | NC | | 25,28,29,32-35 | | IO2 | 5 | I/O/T | GPIO2,ADC1\_CH2,FSPIQ | | IO3 | 6 | I/O/T | GPIO3,ADC1\_CH3 | | EN | 8 | I | High: on, enables the chip. | | Low: off, the chip powers off. | | Note: Do not leave the EN pin floating. | | IO0 | 12 | I/O/T | GPIO0,ADC1\_CH0,XTAL\_32K\_P | | IO1 | 13 | I/O/T | GPIO1,ADC1\_CH1,XTAL\_32K\_N | | IO10 | 16 | I/O/T | GPIO10,FSPICS0 | | IO4 | 18 | I/O/T | GPIO4,ADC1\_CH4,FSPIHD,MTMS | | IO5 | 19 | I/O/T | GPIO5,ADC2\_CH0,FSPIWP,MTDI | | IO6 | 20 | I/O/T | GPIO6,FSPICLK,MTCK | | IO7 | 21 | I/O/T | GPIO7,FSPID,MTDO | | IO8 | 22 | I/O/T | GPIO8 | | IO9 | 23 | I/O/T | GPIO9 | | IO18 | 26 | I/O/T | GPIO18,USB\_D- | | IO19 | 27 | I/O/T | GPIO19,USB\_D+ | | RXD0 | 30 | I/O/T | GPIO20,U0RXD | | TXD0 | 31 | I/O/T | GPIO21,U0TXD | **Specification**9. ESP32-C3FN4 embedded,32-bit RISC-V single-core processor, up to 160 MHz 10. 384 KB ROM 11. 400 KB SRAM 12. 8 KB RTC SRAM 13. 4 MB SPI flash 14. Operating Voltage/Power Supply: 3.0~3.6V 15. Operating Temperature Range: –40~85°C **Documents**17. [Datasheet](https://core-electronics.com.au/attachments/localcontent/esp32-c3-mini-1_datasheet_en_8140050d3b0.pdf) **Parts List**19. ESP32-C3-MINI-1-N4 Module (PCB Antenna) ×1 ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_1694.jpg)