The NuMaker-PFM-M2351 is fantastic board powered by a microcontroller from the ARM Cortex-M23 family.
The board combines a secure memory, one WiFi module (ESP8266EX ESP03), one NAU88L25 audio codec with a 3.5mm Mid-Mount SMD headphone jack and one Micro-SD Read more
Can be used “normally” or via mbed.
ST Page: http://www.st.com/en/evaluation-tools/steval-fki868v1.html
Sigfox page: https://partners.sigfox.com/products/steval-fki868v1
Schematics in the datasheet or here: http://www.st.com/resource/en/schematic_pack/steval-fki868v1_schematic.pdf
S2-LP ULP transceiver page: http://www.st.com/en/wireless-connectivity/s2-lp.html
STMicro Wireless Connectivity for IoT Applications Brochure: http://www.st.com/resource/en/brochure/brwireless_web.pdf
Read moreWiSOL SFM10R1: a cheap Sigfox Module made by WiSOL available as devkit from SNOC/Yadom.
Some links:
Wisol module manufacturer site: http://www.wisol.co.kr/
Yadom online shop: http://yadom.fr/
SNOC (Société Nationale des Objets Connectés): https://snoc.fr/
WiSOL SNOC Module In the box Read more