An injection device comprising: an energy source configured to power an electronic component ; a priming component configured to convert a mechanical impulse into a trigger; a plunger configured to transmit the trigger from the priming component to a bearing ; the bearing configured to provide firm mounting to an end of the plunger ; a reactant included in the bearing and configured to initiate a thermochemical reaction that generates an instantiation signal transmittable through the bearing in response to receiving the trigger, wherein: the reactant is configured to shift from a first position to a second position to generate the instantiation signal; and the instantiation signal comprises a photo-signal and the reactant comprises one or more reactants configured to generate a luminescent reaction in response to the trigger; and the reactant comprises a first reactant and a second reactant , at least one of the first reactant and the second reactant comprising a fluid reactant , the first reactant and the second reactant being separated from each other by a fluid impermeable membrane that is configured to be pierced in reaction to the trigger to enable interaction between the first reactant and the second reactant ; and a sensor configured to detect and process the instantiation signal and generate an activation signal to activate the energy source , the activation signal comprising a wakeup signal to power the electronic component of the injection device . an energy source configured to power an electronic component ; a priming component configured to convert a mechanical impulse into a trigger; a plunger configured to transmit the trigger from the priming component to a bearing ; the bearing configured to provide firm mounting to an end of the plunger ; a reactant included in the bearing and configured to initiate a thermochemical reaction that generates an instantiation signal transmittable through the bearing in response to receiving the trigger, wherein: the reactant is configured to shift from a first position to a second position to generate the instantiation signal; and the instantiation signal comprises a photo-signal and the reactant comprises one or more reactants configured to generate a luminescent reaction in response to the trigger; and the reactant comprises a first reactant and a second reactant , at least one of the first reactant and the second reactant comprising a fluid reactant , the first reactant and the second reactant being separated from each other by a fluid impermeable membrane that is configured to be pierced in reaction to the trigger to enable interaction between the first reactant and the second reactant ; and the reactant is configured to shift from a first position to a second position to generate the instantiation signal; and the instantiation signal comprises a photo-signal and the reactant comprises one or more reactants configured to generate a luminescent reaction in response to the trigger; and the reactant comprises a first reactant and a second reactant , at least one of the first reactant and the second reactant comprising a fluid reactant , the first reactant and the second reactant being separated from each other by a fluid impermeable membrane that is configured to be pierced in reaction to the trigger to enable interaction between the first reactant and the second reactant ; and a sensor configured to detect and process the instantiation signal and generate an activation signal to activate the energy source , the activation signal comprising a wakeup signal to power the electronic component of the injection device . <EOS>