Digital Step Km Counter Max.:  Pedometer has a range of 9.950 meters with2-digits. Slip it in pants pocket for walking and jogging (Electronic circuit design added 02/05)

Electronic distance meter Based on Motorola 68HC908QY4:  (Electronic circuit added 4/05)

IR distance ranger covers 1 to 20 cm:  04/11/02 EDN Design Ideas (added 1/05)  Commercially available IR distance rangers typically handle a 3- to 30-in. detection distance. Many times, it is necessary to determine smaller distances. The circuit in Figure 1 is useful for measuring small distances to reflective surfaces. Its measurement range is from less than 1 cm to approximately 20 cm for a flat, white surface. ...

Pedometer:  Pedometer has a range of 9.950 meters with2-digits. Slip it in pants pocket for walking and jogging (Electronic circuit design added 02/05)

Power-Saving Pedometer Also Measures Speed :  07/19/04  Electronic Design - Design Briefs / (Electronic circuit design added 02/05)  A pedometer is a device that counts the number of steps taken by a person and calculates the distance traveled by multiplying the number of steps by the length of the step. Here's a design solution for building a pedometer using the AVR MCU. The... )....