Source-backed claims. Configuration, workload and evidence type matter when comparing products.
Adc resources
3 x ADC(12 bits/16 channels)
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span. Header says Digital to analog conversion but its cell explicitly specifies ADC; ADC wording retained and header inconsistency recorded.
Four STM32 core board parameter comparison3 x ADC(12 bits/16 channels)
Board dimensions (comparison table)
35 × 55 mm
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer table; larger boards have more precise 35.1 × 55.1 mm callouts in a separate drawing.
Four STM32 core board parameter comparison35*55mm
Board drawing length
55.1 mm
Reported claim
Configuration: APM32E103RET6 / Core Board; Native drawing explicitly applies to STM32F103RCT6 / APM32E103RET6; diameter callout has no printed unit adjacent to its token, so its unit is left unstated.
RCT6 and RET6 board layout and dimensional drawing55.1mm
Board drawing width
35.1 mm
Reported claim
Configuration: APM32E103RET6 / Core Board; Native drawing explicitly applies to STM32F103RCT6 / APM32E103RET6; diameter callout has no printed unit adjacent to its token, so its unit is left unstated.
RCT6 and RET6 board layout and dimensional drawing35.1mm
Board interfaces
SWD debugging interface, Type-C interface, LCD display interface
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonSWD debugging interface, Type-C interface, LCD display interface
Board mass
11.8 g
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer table; accessory inclusion unspecified.
Four STM32 core board parameter comparison11.8g
Boot0 behavior
When the Flash program is working, BOOT0 can be suspended
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonWhen the Flash program is working, BOOT0 can be suspended
Buttons
BOOT0 button, reset button, KEY1 button
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonBOOT0 button, reset button, KEY1 button
Core voltage (adc row)
1.8 V
Reported claim
Configuration: APM32E103RET6 / Core Board; MCU core electrical value; not a board input rating.
Four STM32 core board parameter comparisonExternal voltage: 2.0-3.6V Kernel voltage: 1.8V
Development tools
KEIL MDK, STM32CubeMX, etc.
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonKEIL MDK, STM32CubeMX, etc.
Drawing length including projecting header
61.4 mm
Reported claim
Configuration: APM32E103RET6 / Core Board; Native drawing explicitly applies to STM32F103RCT6 / APM32E103RET6; diameter callout has no printed unit adjacent to its token, so its unit is left unstated.
RCT6 and RET6 board layout and dimensional drawing61.4mm
External flash (published notation)
8M
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span. K/M notation does not explicitly distinguish bits from bytes; no MB/KB conversion is asserted.
Four STM32 core board parameter comparison8M
External voltage range (adc row)
2.0–3.6 V
Reported claim
Configuration: APM32E103RET6 / Core Board; Printed under Voltage range (ADC); not interpreted as a Type-C input rating.
Four STM32 core board parameter comparisonExternal voltage: 2.0-3.6V Kernel voltage: 1.8V
Header group notation
15 × 2 pins on each labeled long edge
Reported claim
Configuration: APM32E103RET6 / Core Board; Both long-edge header groups are separately labeled on the drawing.
RCT6 and RET6 board layout and dimensional drawing15*2 Pin
Indicator leds
Power red indicator light, PB4 user-defined blue LED light, 3-color RGB light
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonPower red indicator light, PB4 user-defined blue LED light, 3-color RGB light
Internal flash (published notation)
512K
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span. K/M notation does not explicitly distinguish bits from bytes; no MB/KB conversion is asserted.
Four STM32 core board parameter comparison512K
Mcu architecture and revision
Cortex M3; R1P0
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer Cortex M3 Core row; revision is the MCU core revision, not a Yahboom board generation.
Four STM32 core board parameter comparisonR1P0
Mcu main frequency
120 MHz
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer table maximum/main frequency; not the operating frequency of every current measurement.
Four STM32 core board parameter comparison120MHZ
Mcu package
LQFP64
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonLQFP64
Mcu package pin count
64
Reported claim
Configuration: APM32E103RET6 / Core Board; MCU resource count, not the exposed board header count.
Four STM32 core board parameter comparison64
Mounting-hole diameter callout
φ2.6
Reported claim
Configuration: APM32E103RET6 / Core Board; Native drawing explicitly applies to STM32F103RCT6 / APM32E103RET6; diameter callout has no printed unit adjacent to its token, so its unit is left unstated.
RCT6 and RET6 board layout and dimensional drawingφ2.6
Mounting-hole horizontal span
49 mm
Reported claim
Configuration: APM32E103RET6 / Core Board; Native drawing explicitly applies to STM32F103RCT6 / APM32E103RET6; diameter callout has no printed unit adjacent to its token, so its unit is left unstated.
RCT6 and RET6 board layout and dimensional drawing49mm
Mounting-hole vertical span
29 mm
Reported claim
Configuration: APM32E103RET6 / Core Board; Native drawing explicitly applies to STM32F103RCT6 / APM32E103RET6; diameter callout has no printed unit adjacent to its token, so its unit is left unstated.
RCT6 and RET6 board layout and dimensional drawing29mm
Onboard imu
On-board 6-axis IMU
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonOn-board 6-axis IMU
Optional tft display connection
8-pin FPC; supports 0.96-inch TFT
Reported claim
Configuration: APM32E103RET6 / Core Board; Display is an optional peripheral; selected board SKU does not imply its inclusion.
STM32 optional TFT connectorOn-board 8P FPC connector supports the connection of a 0.96-inch TFT color display, which can be used to display Chinese characters, character strings, and pictures.
Peripheral resources
2 x SPI, 3 x USART, 2 x I2C, 2 x I2S, 1 x CAN, 51 x I/O ports, 2 x DAC
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparison2 x SPI, 3 x USART, 2 x I2C, 2 x I2S, 1 x CAN, 51 x I/O口, 2 x DAC
Programming methods
SWD or serial port one-clink download
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonSWD or serial port one-clink download
Register layout statement
Same logical address
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span.
Four STM32 core board parameter comparisonSame logical address
Serial programming circuit
CH340
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer specification; no independent performance testing.
yahboom-stm32-core-boardOn board smallest STM32 system circuit and CH340 drive
Sleep current
9.76 mA
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer Power dissipation row reports current; frequency, supply and test setup unspecified.
Four STM32 core board parameter comparisonSleep mode: 9.76mA Standby mode: 3.85uA Working power dissipation: 15.01mA/72M
Sram (published notation)
128K
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer comparison table; shared cells applied only to the columns they span. K/M notation does not explicitly distinguish bits from bytes; no MB/KB conversion is asserted.
Four STM32 core board parameter comparison128K
Standby current
3.85 µA
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer Power dissipation row reports current; retention and test setup unspecified.
Four STM32 core board parameter comparisonSleep mode: 9.76mA Standby mode: 3.85uA Working power dissipation: 15.01mA/72M
Timer count
8
Reported claim
Configuration: APM32E103RET6 / Core Board; MCU resource count, not the exposed board header count.
Four STM32 core board parameter comparison8
Working current
15.01 mA
Reported claim
Configuration: APM32E103RET6 / Core Board; Manufacturer Power dissipation row reports current; source prints /72M; no expanded frequency unit assumed.
Four STM32 core board parameter comparisonSleep mode: 9.76mA Standby mode: 3.85uA Working power dissipation: 15.01mA/72M