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Phase 1 Gain = -R7/R6
U1
Display Module Parameters
Note 1
ADC inputs of MCU are single-ended and limited to 0 to 3.3V and Resolution is 12 bits
SOUND SENSOR CIRCUIT
Display Module Circuit
Idea is to have two electrodes that will respond to touch
Accelerometer Sensing Circuit
Phase 2 Gain = -R12/R8
Brains - Particle Photon 2
AMPLIFICATION CIRCUIT
Touch Sensing Circuit
Capacitors near the microphone should not contain class 2 dielectric
R10
Resistance
100kΩ
R11
Resistance
10kΩ
J1
R3
Resistance
10kΩ
R5
Resistance
10kΩ
C1
Capacitance
0.1uF
R14
Resistance
10kΩ
R4
Resistance
75kΩ
C7
Capacitance
10uF
R9
Resistance
10kΩ
C6
Capacitance
1uF
C3
Capacitance
1uF
R6
Resistance
10kΩ
C9
Capacitance
100pF
C5
Capacitance
100nF
R2
Resistance
10kΩ
R13
Resistance
10kΩ
R8
Resistance
10kΩ
R1
Resistance
10kΩ
R12
Resistance
100kΩ
C10
Capacitance
100pF
C4
Capacitance
100nF
C8
Capacitance
100nF
C2
Capacitance
0.1uF
C11
Capacitance
100nF
R7
Resistance
100kΩ
P3
U2
U4
U3
Not Recommended for New Designs

Jellybean r6xW