vcc-gnd.com Green Pill


Board

Namevcc-gnd.com Green Pill
PartUnknown
Brandvcc-gnd
OriginChina

Microcontroller

Part
Manufacturer
Core
Max. Clock SpeedMHz
Package pins

Internal memories

FLASHKiB
SRAMKiB

Oscillators

HSIMHz
LSIkHz
HSENone
LSE32.768kHz

Power

Sources
Any +3.3V pin (+3.3V)
Any +5V pin (+5V)
VDDA pinYes
VSSA pinNo
VREF- pinNo
VREF+ pinNo
Backup batteryPin

Regulator

ManufacturerShanghai TX Electronics Sci-Tech Co., Ltd
PartTX6211B (DE=A1D)
PackageSOT23-5 5 pins
Input+3.6V to +5.5V
Output+3.3V @ 300mA
DatasheetTX6211B.pdf

PCB

ColorGreen
Size (w x l)18mm x 55mm
MountingBreadboard

Remarks

  • Note: This board has two bits that can be broken off the main board. These bits can be connected to the board via the white connectors. When not separated from the board, the pin headers on these bits are electrically connected.

Pictures

vcc-gnd.com Green Pill: Perspective view
vcc-gnd.com Green Pill: Perspective view
vcc-gnd.com Green Pill: Top view
vcc-gnd.com Green Pill: Top view
vcc-gnd.com Green Pill: Bottom view
vcc-gnd.com Green Pill: Bottom view

Inputs & outputs


Reset button

Name RST
Reference -
Type Button
Connected to NRST
Mode Active low

Power source switch

Name -
Reference -
Type Switch
Connected to +3.3V rail or battery
Mode N.A.

VDDA solder bridge

Name -
Reference SB1
Type Solder bridge
Connected to VDD to VDDA
Mode N.A.

User LED solder bridge

Name -
Reference SB2
Type Solder bridge
Connected to PB3 to User LED
Mode N.A.

VDD solder bridge

Name -
Reference SB3
Type Solder bridge
Connected to VDD to +3.3V rail
Mode N.A.

VDD jumper

Name -
Reference -
Type 1-way jumper
Connected to VDD to +3.3V rail
Mode N.A.

VBAT to VIN solder bridge

Name -
Reference SB4
Type Solder bridge
Connected to VBAT to VIN
Mode N.A.

VIN to regulator solder bridge

Name -
Reference SB5
Type Solder bridge
Connected to VIN to regulator
Mode N.A.

Power LED

Name -
Reference -
Type LED
Connected to +5V rail
Mode N.A.

User LED

Name -
Reference -
Type LED
Connected to PB3
Mode Source

Connectors & headers


Header 1 properties

Name Unknown
Reference None
Type Pin header (2.54mm, 15x1, male)

Header 1 pins

# Name Function Connected to
1 VIN - VIN
2 GND - Ground plane
3 RST - NRST
4 5V - +5V rail
5 A2 - PA2
6 A7 - PA7
7 A6 - PA6
8 A5 - PA5
9 A4 - PA4
10 A3 - PA3
11 A1 - PA1
12 A0 - PA0
13 RE - AREF
14 3V3 - +3.3V rail
15 B3 - PB3

Header 2 properties

Name Unknown
Reference None
Type Pin header (2.54mm, 15x1, male)

Header 2 pins

# Name Function Connected to
1 A9 - PA9
2 A10 - PA10
3 RST - NRST
4 GND - Ground plane
5 A12 - PA12
6 B0 - PB0
7 B7 - PB7
8 B6 - PB6
9 B1 - PB1
10 C14 - PC14
11 C15 - PC15
12 A6 - PA6
13 A11 - PA11
14 B5 - PB5
15 B4 - PB4

Battery header properties

Name Unknown
Reference None
Type Pin header (2.54mm, 4x1, male)

Battery header pins

# Name Function Connected to
1 GND- - GND
2 VBAT+ - Power selection switch

SWD header properties

Name Unknown
Reference None
Type Pin header (2.54mm, 4x1, male)

SWD header pins

# Name Function Connected to
1 VDD(MCU) VCC VDD
2 SWDIO SWDIO PA13
3 SWCLK SWCLK PA14
4 GND GND Ground rail