850/900/1800/1900 MHz GSM module to add GSM connectivity to development boards with UEXT connector
Price79.95 EUR
10 - 49 pcs71.96 EUR
50 - 10000 pcs63.96 EUR
In stock


  • MOD-GSM-EDGE allow every OLIMEX's board with UEXT connector to have GSM 4 band 850/900/1800/1900 MHz connectivity \
  • Data throughput up to 236 Kbps in Edge mode
  • Uses SIM700D GSM module
  • PCB: FR-4, 1.5 mm (0,062"), soldermask, white silkscreen component print
  • Dimensions: 79x59 mm (3.12 x 2.3")



  • MOD-GSM doesn't transmit properly data on the UEXT of another Olimex board. Where is the problem?
  • You might need to cut the UEXT cable connecting the MOD-GSM with the board so that the only data call signals left, are the ones that refer to MOD-GSM with DUINOMITE boards (CTS is held at a high position, which means it will not send data). Keep in mind that some other boards can also interfere with MOD-GSM's signals. If the host board has any signal on the I2C and/or the SPI on the UEXT, there is a very high chance of erroneous behaviour.