LimiFrog Version 1¶
Support for the limifrog-v1 board.
Overview¶
LimiFrog-v1 arose from the La BlueFrog board. LimiFrog-v1 contains the first hardware revision of that kickstarter project. LimiFrog-v2 is already there and the RIOT support will follow. LimiFrog features a variety of sensors as well as an OLED Display and a BLE (Bluetooth Low-Energy) module.
Hardware¶
MCU¶
MCU | STM32L151RC |
---|---|
Family | ARM Cortex-M3 |
Vendor | ST Microelectronics |
RAM | 32Kb |
Flash | 256Kb |
Frequency | 32MHz (no external oscilator connected) |
FPU | no |
Timers | 8 (8x 16-bit, 1x 32-bit [TIM5]) |
ADCs | 1x 42-channel 12-bit |
UARTs | 3 |
SPIs | 2 |
I2Cs | 2 |
Vcc | 1.65V - 3.6V |
Datasheet | Datasheet |
Reference Manual | Reference Manual |
Programming Manual | Programming Manual |
MCU¶
MCU | STM32L151RC |
---|---|
Family | ARM Cortex-M3 |
Vendor | ST Microelectronics |
RAM | 32Kb |
Flash | 256Kb |
Frequency | 32MHz (no external oscilator connected) |
FPU | no |
Timers | 8 (8x 16-bit, 1x 32-bit [TIM5]) |
ADCs | 1x 42-channel 12-bit |
UARTs | 3 |
SPIs | 2 |
I2Cs | 2 |
Vcc | 1.65V - 3.6V |
Datasheet | Datasheet |
Reference Manual | Reference Manual |
Programming Manual | Programming Manual |
Implementation Status¶
Device | ID | Supported | Comments |
---|---|---|---|
MCU | STM32L151RC | partly | Energy saving modes not fully utilized |
Low-level driver | GPIO | yes | |
PWM | yes | ||
UART | yes | ||
I2C | yes | ||
SPI | yes | ||
Timer | yes | ||
Ambient Light Sensor | ST VL6180X | no | planned |
Accelerometer | ST LSM6DS3 | no | planned |
Magnetometer | ST LIS3MDL | no | planned |
Gyroscope | ST LSM6DS3 | no | planned |
atmospheric pressure (and altitude) sensor | ST SLPS25H | no | planned |
Microphone | Knowles SPU0414HR5H-SB | no | planned |
OLED Display | Densitron DD-160128FC-1A | no | planned |
BLE | Panasonic PAN1740 | no | planned |
Flashing and Debugging the device¶
The LimiFrog-v1 has no on-board programmer nor an USB-UART converter. It can be programmed by using the integrated ST-Link/V2 programmer of any STM32Fx- discovery board. See Hardware section here for an example. Another way is to use a stand-alone ST-Link V2 programmer as shown in the picture.
To debug the device you may also want to use a stand-alone UART converter and connect it to the pins PC10 and PC11 and keep the programmer plugged.