Just got my board, confirmed blink sketch works perfectly. But the Arduino IDE examples for Matter (MatterCommissionTest.ino and MatterMinimum.ino) fail on this board because the sketch is too big: Sketch uses 1579565 bytes (120%) of program storage space. Maximum is 1310720 bytes. I’m surprised by this because this device is specifically marketed as supporting Matter. Is there a specific Matter library or other solution?
Hi there,
It does, The issue is between the keyboard and the floor…Half way anyway, You see it only onboards with ESP-IDF for C6 it’s noted in the wiki, However I was able to flash a New XiaoESP32C6 with ESP LaunchPad. You forgot to set some tools menu Items No?, It does require the BIGGEST partition Scheme , the default of course won’t fit, Pick "Hughe APP 3MB_No OTA 1Meg Spiffs "option
Have a Look again…or use the LaunchPad to test it.
HTH
GL 
PJ 
I flashed this New Xiao unit in less than 30 seconds added it to my devices in milliseconds.
esptool.js
Serial port WebSerial VendorID 0x303a ProductID 0x1001
Connecting....
Detecting chip type... ESP32-C6
Chip is ESP32-C6 (revision 1)
Features: Wi-Fi 6,BT 5,IEEE802.15.4
Crystal is 40MHz
MAC: 54:32:04:11:ee:24
Uploading stub...
Running stub...
Stub running...
Changing baudrate to 921600
Changed
Manufacturer: 0
Device: 00
Detected flash size: undefined
Warning: Image file at 0x0 doesn't look like an image file, so not changing any flash settings.
Compressed 1835488 bytes to 1039071...
Writing at 0x0... (1%)
Writing at 0x214b4... (3%)
Writing at 0x2fdf5... (4%)
Writing at 0x3d66e... (6%)
Writing at 0x4adaa... (7%)
Writing at 0x534c3... (9%)
Writing at 0x58467... (10%)
Writing at 0x5f327... (12%)
Writing at 0x65f72... (14%)
Writing at 0x6c19d... (15%)
Writing at 0x722b2... (17%)
Writing at 0x78b20... (18%)
Writing at 0x80028... (20%)
Writing at 0x85cb1... (21%)
Writing at 0x8c225... (23%)
Writing at 0x94623... (25%)
Writing at 0x9a5b4... (26%)
Writing at 0xa087a... (28%)
Writing at 0xa6cee... (29%)
Writing at 0xad25d... (31%)
Writing at 0xb38eb... (32%)
Writing at 0xba996... (34%)
Writing at 0xc142e... (35%)
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Writing at 0xcd471... (39%)
Writing at 0xd3128... (40%)
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Writing at 0xe4f17... (45%)
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Writing at 0xf120d... (48%)
Writing at 0xf73d9... (50%)
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Writing at 0x10314b... (53%)
Writing at 0x108d80... (54%)
Writing at 0x10f04d... (56%)
Writing at 0x114c56... (57%)
Writing at 0x11aa44... (59%)
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Writing at 0x13563e... (65%)
Writing at 0x13b22e... (67%)
Writing at 0x141702... (68%)
Writing at 0x147446... (70%)
Writing at 0x14d32b... (71%)
Writing at 0x153c58... (73%)
Writing at 0x15a0f5... (75%)
Writing at 0x160322... (76%)
Writing at 0x1663d9... (78%)
Writing at 0x16c802... (79%)
Writing at 0x1727cf... (81%)
Writing at 0x178a50... (82%)
Writing at 0x17ecc5... (84%)
Writing at 0x18506a... (85%)
Writing at 0x18af7f... (87%)
Writing at 0x191418... (89%)
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Writing at 0x19d85b... (92%)
Writing at 0x1a3aae... (93%)
Writing at 0x1a9b38... (95%)
Writing at 0x1afdd5... (96%)
Writing at 0x1b5f6e... (98%)
Writing at 0x1bc3ca... (100%)
Wrote 1835488 bytes (1039071 compressed) at 0x0 in 13.609 seconds.
Leaving...
Be sure to press reset for it to discover your new device