Picture a capstone team in Manila counting the budget peso by peso, needing Wi-Fi 6 and Matter for a smart-home thesis, but every module in the cart pushes the bill of materials too high. That squeeze is exactly what Espressif set out to fix, and after almost three years of waiting, the fix is finally on sale.
What finally shipped
Espressif has released the ESP32-C61-MINI module family, a cost-reduced sibling to the popular ESP32-C6. The MINI-1 and MINI-1U (the “U” version adds a connector for an external antenna) are listed on Espressif’s official AliExpress store at $10.70 for five of the 4MB-flash N4 variant, which works out to roughly PHP 125 per module before shipping. An 8MB flash plus 8MB PSRAM version was announced too, but only the 4MB parts can be ordered right now.
How they cut the cost
The C61 keeps the parts that matter for connected projects: a 32-bit RISC-V core running up to 160MHz, single-band 2.4GHz Wi-Fi 6, Bluetooth 5 Low Energy, and IEEE 802.15.4 for Thread and Matter. To hit the lower price, Espressif trimmed the on-chip SRAM from 512kB down to 320kB and the internal flash from 320kB to 256kB. If a build outgrows that, you can hang up to 8MB of extra flash and RAM off the SPI bus, so headroom is a solder joint away instead of a redesign. You give up a little breathing room to shave the bill of materials on projects you plan to build in quantity.
Why it matters for your bench
Wi-Fi 6 and Matter used to sit in the “nice, but not on a student budget” column. At about PHP 125 a module, a C61-MINI turns a sensor node, a Matter light switch, or a classroom IoT demo into something you can build five at a time without wincing. If you already know the ESP32-C6 toolchain, the C61 uses the same ESP-IDF workflow, so your existing libraries and GPIO pin habits carry straight over. Check module availability on CNX Software and Espressif’s store, order a strip, and breadboard a Wi-Fi 6 node this weekend.
Frequently Asked Questions
What wireless standards does the ESP32-C61 support?
It carries single-band 2.4GHz Wi-Fi 6, Bluetooth 5 Low Energy, and IEEE 802.15.4, so it can run Thread and Matter devices alongside classic Wi-Fi and BLE projects.
How does the C61 come in cheaper than the ESP32-C6?
Espressif kept the same 32-bit RISC-V core at up to 160MHz but trimmed on-chip SRAM from 512kB to 320kB and flash from 320kB to 256kB. You can still add up to 8MB of flash and RAM over SPI. The MINI-1-N4 lists at $10.70 for five.
What will I learn if I build with the ESP32-C61-MINI?
You’ll practice the ESP-IDF toolchain, Wi-Fi provisioning, BLE, and Matter device commissioning, plus how shrinking SRAM and flash forces real bill-of-materials tradeoffs on a deployable design.
