ECG/EKG/EMG Shield with Cables and Electrodes for Arduino

$43.89 $60.57
This is an EKG/EMG shield which allows Arduino like boards to cap­ture Elec­tro­car­dio­g­ra­phy Elec­tromyo­g­ra­phy sig­nals. The shield opens new pos­si­bil­i­ties to exper­i­ment. You can mon­i­tor your heart­beat and log your pulse, rec­og­nize ges­tures by mon­i­tor­ing and ana­lyze the mus­cle activ­i­ty as it is done in this project.SHIELD-EKG-EMG con­verts the ana­log dif­fer­en­tial sig­nal (the ECG/EMG bio poten­tials gen­er­at­ed by mus­cles), attached to its CH1_IN /CH1_IN- inputs, into a sin­gle stream of data as out­put. The out­put sig­nal is ana­log and have to be dis­cretized fur­ther with aim to give the option of dig­i­tal pro­cess­ing. Typ­i­cal­ly, this is done via ded­i­cat­ed ADC embed­ded in the MCU of the base board (like: OLIMEXINO-328, OLIMEXINO-32U4, OLIMEXINO-STM32, etc). In the demo exam­ple we have pro­vid­ed, “ShieldEkgEmgDemo.ino”, we have used 10-bit ADC with 256Hz sam­pling rate.SHIELD-EKG-EMG’s total gain is the prod­uct of the gains of each dis­cretiza­tion stage: Instru­men­tal Amplifier(G1=10), OAmp with reg­u­lat­ed gain (G2=6..101) and 3rd order “Bessel­worth” fil­ter (G3=3.56). Then, the Total = G1*G2*G3 = 10*(6..101)*3.56. By default, we have set the G2 gain approx­i­mate­ly ~80. Then, Gto­tal = 10*(~80)*3.56 ~ 2848.Vmax­ana­log = 3.0V/2848 ~ 1mVNote that the 3rd order “Bessel­worth” fil­ter’s cut­off fre­quen­cy is set to fc = 40Hz.FEATURESStack­able con­nec­tors — up to 6 chan­nels can be stacked and wired to A0-A6 ana­logue inputsCal­i­bra­tion sig­nal gen­er­a­tion by D4/D9 dig­i­tal out­putPre­cise trim­mer poten­tiome­ter for cal­i­bra­tion (all boards are shipped com­plete­ly assem­bled, test­ed and cal­i­brat­ed so that you don’t have to do this unless you want to see how things works)Input con­nec­tor for stan­dard or active elec­trodesWorks with both 3.3V and 5V Arduino boardsDOCUMENTSSHIELD-EKG-EMG user’s man­u­al doc­u­ment revi­sion ESHIELD-EKG-EMG Euro­pean Dec­la­ra­tion of Con­for­mi­tySHIELD-EKG-EMG UKCA Dec­la­ra­tion of Con­for­mi­tyHARDWARESHIELD-EKG-EMG schemat­ic in PDF for­mat released under Cre­ative Com­mons Attri­bu­tion-Share Alike 3.0 Unit­ed States LicenseSHIELD-EKG-EMG schemat­ic and board in Eagle for­mat released under Cre­ative Com­mons Attri­bu­tion-Share Alike 3.0 Unit­ed States LicenseSOFTWAREDemo with Olimex­i­no-2560 and Arduino IDEElec­tric guru mon­i­tor­ing soft­ware, cre­at­ed by Rob SacksArduino exam­ple for EKG cap­ture and inter­face to Elec­tric Guru for OLIMEX­I­NO-328/Ar­duino boardsMaple exam­ple for EKG cap­ture and inter­face to Elec­tric Guru for OLIMEXINO-STM32Pin­guino exam­ple for EKG cap­ture and inter­face to Elec­tric Guru for PIC32-PINGUINO/OTG/MX220 (refer to the readme and the com­ments in the code for more info)
Shields

Shields