Stack Chan
2026
OUTLINE
StackChan is ESP32 board which based on ESP32-S3 chip, contained 2-inch TFT screen. The board is made of PC+ABC.
1.1 Hardware Composition
The hardware of CORES3: ESP32-S3 chip, TFT screen, Green LED, Button, GROVE interface, TypeC-to-USB interface, Power Management chip and battery.
ESP32-S3 The ESP32 is a dual-core system with two Harvard Architecture Xtensa LX6 CPUs. All embedded memory,external memory and peripherals are located on the data bus and/or the instruction bus of these CPUs. With some minor exceptions (see below), the address mapping of two CPUs is symmetric, meaning that they use the same addresses to access the same memory. Multiple peripherals in the system can access embeddedmemory via DMA.
TFT Screen yog 2-nti xim npo tsav ILI9342C nrog kev daws teeb meem ntawm 320 x 240.
Kev khiav hauj lwm voltage ntau yog 2.6 ~ 3.3V, ua haujlwm kub yog -25 ~ 55 ° C.
Power Management nti yog X-Powers's AXP2101. Kev ua haujlwm voltage ntau yam yog 2.9V ~ 6.3V thiab them tam sim no yog 1.4A.
StackChan equips ESP32 with everything needed for programming, everything needed for operation and development
PIN DESCRIPTION
2.1.USB INTERFACE
M5CAMREA Configuration Type-C hom USB interface, txhawb USB2.0 tus qauv kev sib txuas lus raws tu qauv.
2.2.GROVE INTERFACE
4p spacing 2.0mm M5CAMREA GROVE Ports. A, Port. B, and Port. C, the internal cables are connected to GND, 5V, GPIO1, GPIO2, GPIO8, GPIO9, GPIO17, and GPIO18.
FUNCTIONAL DESCRIPTION
Tshooj lus no piav qhia txog ESP32-S3 ntau yam qauv thiab kev ua haujlwm.
3.1.CPU THIAB nco
Xtensa® dual-core 32-ntsis LX7 microprocessor, mus txog 240 MHz
- 384 KB ROM
- 512 KB SRAM
- 16 KB SRAM hauv RTC
- SPI, Dual SPI, Quad SPI, Octal SPI, QPI thiab OPI interfaces uas tso cai rau kev sib txuas rau ntau lub flash thiab sab nraud RAM
- Flash maub los nrog cache yog txaus siab
- Flash in-Circuit Programming (ICP) tau txais kev txhawb nqa
3.2.STORAGE DESCRIPTION
3.2.1. Sab nraud Flash thiab SRAM
ESP32-S3 txhawb nqa SPI, Dual SPI, Quad SPI, Octal SPI, QPI thiab OPI interfaces uas tso cai rau kev sib txuas rau ntau lub flash sab nraud thiab RAM.
The external flash and RAM can be mapped into the CPU instruction memory space and read-only data memory space. The external RAM can also be mapped into the
CPU data memory space. ESP32-S3 supports up to 1GB of external flash and RAM, and hardware encryption/decryption based on XTS-AES to protect users’programs and data in flash and external RAM.
Los ntawm kev kub ceev caches, ESP32-S3 tuaj yeem txhawb nqa ib lub sijhawm mus txog:
- External flash or RAMmapped into 32 MB instruction space as individual blocks of 64 KB
- Sab nraud RAM mapped rau hauv 32 MB cov ntaub ntawv chaw raws li ib tug neeg blocks ntawm 64 KB. 8-ntsis, 16-ntsis, 32-ntsis, thiab 128-ntsis nyeem thiab sau tau txais kev txhawb nqa. Sab nraud flash kuj tuaj yeem ua rau hauv 32 MB cov ntaub ntawv qhov chaw raws li ib tus neeg thaiv ntawm 64 KB, tab sis tsuas yog txhawb nqa 8-ntsis, 16-ntsis, 32-ntsis thiab 128-ntsis nyeem.
3.3.CPU CLOCK
Lub moos CPU muaj peb qhov chaw tau:
- Sab nraud lub ntsiab siv lead ua moos
- Internal ceev RC oscillator (feem ntau txog 17.5 MHz, thiab kho tau)
- PLL moos
Daim ntawv thov tuaj yeem xaiv lub moos los ntawm peb lub moos saum toj no.
The selected clock source drives the
CPU clock directly, or after division, depending on the application. Once the CPU is reset, the default clock source would be the external main crystal clock divided by 2.
3.4.RTC AND LOWPOWER MANAGEMENT
Nrog rau kev siv cov thev naus laus zis tswj hwm hluav taws xob, ESP32-S3 tuaj yeem hloov pauv ntawm ntau hom hluav taws xob sib txawv. (saib table1).
- Active hom: CPU thiab nti xov tooj cua yog powered rau. Lub nti tuaj yeem txais, xa, lossis mloog.
- Modemsleep hom: CPU ua haujlwm thiab lub moos ceev tuaj yeem txo qis. Lub wireless baseband thiab xov tooj cua yog neeg xiam, tab sis kev sib txuas wireless tuaj yeem ua haujlwm.
- Lightsleep mode: The CPU is paused. The RTC peripherals, as well as the ULP coprocessor can be woken up periodically by the timer.
Any wake-up events (MAC, host, RTC timer, or external interrupts) will wake up the chip. Wireless connection can remain active. Users can optionally decide what peripherals to shut down/keep on (refer to Figure 1), for power-saving purpose. - Deepsleep hom: CPU thiab feem ntau peripherals yog powered down.
Only the RTC memory is powered on and RTC peripherals are optional. Wi-Fi connection data are stored in the RTC memory. The
ULP coprocessor ua haujlwm.
Current Consumption in Low Power Modes: TABLE 1
| Hom ua haujlwm | Kev piav qhia | Typ (A) |
| Teeb-pw | VDD_SPI thiab Wi-Fi yog powered down, thiab tag nrho cov GPIOs yog high-impedance. | 2401 |
| pw tsaug zog | RTC nco thiab RTC peripherals yog powered on. | 8 |
| RTC nco yog powered on. RTC peripherals raug kaw. | 7 | |
| Fais fab tuag | CHIP PU is set to low level. The chip is powered off. | 1 |
ELECTRICALCHARACTERISTICS
4.1.ABSOLUTEMAXIMUMRATINGS
Table2:AbsoluteMaximumRatings
| Cim | Parameter | Min | Max | Chav tsev |
| VDDA, VDD3P3, VDD3P3_RTC, VDD3P3_CPU, VDD_SPI | Voltage siv rau lub hwj chim mov pins ib lub hwj chim domain | -0.3 V | 3.6 | |
| ‘output I' | Cumulative l0 tso zis tam sim no | 1500 | mA | |
| T KHOOM | Cia kub | - 40 Nws | 150 | °C |
1. VIO rau lub hwj huam mov, Xa mus rau ESP32 Technical Specification Appendix IO_MUX, as SD_CLK of Power supply for VDD_SDIO.
4.2.WIFI RADIO AND BASEBAND
ESP32-S3 Wi-Fi xov tooj cua thiab baseband txhawb cov yam ntxwv hauv qab no:
- 802.11b/g/n
- 802.11n MCS0-7 uas txhawb 20 MHz thiab 40 MHz bandwidth
- 802.11n MCS 32
- 802.11n 0.4 μs guard-interval
- Cov ntaub ntawv tus nqi mus txog 150 Mbps
- RX STBC (ib qho spatial kwj)
- Adjustable kis tau tus mob
- Antenna ntau haiv neeg:
ESP32-S3 txhawb nqa kav hlau txais xov muaj ntau haiv neeg nrog rau sab nraud RF hloov. Qhov kev hloov no yog tswj los ntawm ib lossis ntau dua
GPIOs, thiab siv los xaiv cov kav hlau txais xov zoo tshaj plaws los txo cov teebmeem ntawm cov channel tsis zoo.
4.3. BLUETOOTH LE RF TRANSMITTER (TX) SPECIFICATIONS
Table 3: Transmitter yam ntxwv Bluetooth LE 1 Mbps
| Parameter | Kev piav qhia | Min | Ntaus | Max | Chav tsev |
| RF xa hluav taws xob | RF zog tswj ntau yam | - 25.00 Nws | 0 | 20.00 | dBm ib |
| Nce qib tswj | 3.00 | dB | |||
| Carrier zaus offset thiab drift | Max Ifnin=0. 1, 2…k | - | 2.50 | — | kHz ua |
| Max Ifo – fnl | 2.00 | — | kHz ua | ||
| Max I fn — fn —51 | 1.39 | — | kHz ua | ||
| IL – fol | 0.80 | — | kHz ua | ||
| Cov yam ntxwv hloov pauv | A flavg | — | 249.00 | — | kHz ua |
| Min A f2max (for at least 99.9% of all A f2,-,,ax) | — | 198.00 | — | kHz ua | |
| A f2avg/Li f lavg | - | 0.86 | — | — | |
| Nyob rau hauv-band spurious emissions | ± 2 MHz offset | - 37.00 Nws | — | dBm ib | |
| ± 3 MHz offset | — | - 42.00 Nws | — | dBm ib | |
| > ± 3 MHz offset | — | - 44.00 Nws | — | dBm ib |
4.4. BLUETOOTH LE RF RECEIVER (RX) SPECIFICATIONS
Table 4: Receiver Yam ntxwv Bluetooth LE 1 Mbps
| Parameter I | Kev piav qhia | Min | Ntaus | Max | Chav tsev |
| rhiab heev 0230.8% PER | — | — | - 97.5 Nws | — | dBm ib |
| Maximum received signal d30.8% PER | — | — | 8 | — | dBm ib |
| Co-channel CA | F = FO MHz | — | 9 | — | dB |
| Kev xaiv channel nyob ib sab C/I | F = F0 + 1 MHz | — | -3 | — | dB |
| F = FO - 1 MHz | — | -3 | — | dB | |
| F=F0+ 2 MHz | — | - 28 Nws | — | dB | |
| F = FO – 2 MHz | — | — | dB | ||
| F = FO + 3 MHz | — | - 31 Nws | — | dB | |
| F = FO – 3 MHz | — | - 33 Nws | — | dB |
FCC ceeb toom
FCC ceeb toom:
Ib qho kev hloov pauv lossis kev hloov kho uas tsis tau pom zoo los ntawm pawg neeg saib xyuas kev ua raws cai tuaj yeem ua rau tus neeg siv txoj cai los khiav cov khoom siv. Cov cuab yeej no ua raws li Tshooj 15 ntawm FCC Cov Cai. Kev khiav hauj lwm yog ua raws li ob qho xwm txheej hauv qab no: (1) Cov cuab yeej no yuav tsis ua rau muaj kev cuam tshuam tsis zoo, thiab (2) cov cuab yeej no yuav tsum lees txais ib qho kev cuam tshuam tau txais, suav nrog kev cuam tshuam uas yuav ua rau kev ua haujlwm tsis zoo.
CEEB TOOM:
Nco tseg: Cov cuab yeej no tau raug sim thiab pom tias ua raws li cov kev txwv rau Class B cov cuab yeej digital, ua raws li Tshooj 15 ntawm FCC Txoj Cai. Cov kev txwv no yog tsim los muab kev tiv thaiv tsim nyog tiv thaiv kev cuam tshuam tsis zoo hauv kev teeb tsa hauv tsev.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does -cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient lossis hloov chaw tus kav hlau txais xov.
- Ua kom muaj kev sib cais ntawm cov khoom siv thiab cov khoom txais.
- Txuas cov khoom siv rau hauv qhov hluav taws xob ntawm lub voj voog sib txawv ntawm qhov uas lub receiver txuas nrog.
- Tham nrog tus neeg muag khoom lossis tus kws tshaj lij xov tooj cua / TV rau kev pab.
Nqe Lus Tshaj Tawm FCC Kev Tshaj Tawm Radiation: Cov cuab yeej no ua tau raws li FCC cov hluav taws xob raug txwv txwv rau ib puag ncig uas tsis muaj kev tswj hwm.
Cov ntaub ntawv / Cov ntaub ntawv
 | StackChan AI Desktop Robot |
Cov ntaub ntawv
- Cov neeg siv phau ntawvmanual.tools