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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)& s) h$ H( Y7 O
- #include <ESP8266HTTPClient.h>
2 k( G8 `. x# D I - #include <ESP8266WiFi.h>
9 L+ k. {4 m2 d# r/ c2 i* e - #include <ESP8266WiFiMulti.h>
; @% a" x5 h; Q - #include <ESP8266WebServer.h>" g$ c! q/ [* Z# h( {% r# C
- #include <arduino.h>9 r- O- _: r0 F" R2 @4 o- L9 N+ _
- ESP8266WiFiMulti WiFiMulti;7 {. j( {+ K( A. t" ^5 P( e
- ESP8266WebServer server(80);
0 e& l6 T7 S4 r5 D' [; M& G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 w+ v @ p: o# ], [+ M% H
- ADC_MODE(ADC_VCC);
4 a' d# ^! P* h. C - void setup() {
. H& q6 c* w" R - Serial.begin(115200);
$ W" @; C( S% l5 o$ I, e. S. G - Serial.print("\r\n\n");. Y8 |: f4 L2 U) ~; m2 Z/ ^# f& w, r/ P& R
- pinMode(2,OUTPUT);5 {$ k0 w" q2 m( e
- // WIFI5 i4 b/ a, E& s; c4 v# o$ V8 u
- WiFi.mode(WIFI_STA);; \4 o: o$ a- H: N7 _4 _: g0 q0 {
- WiFi.hostname("Sparkle");+ C/ e' `) b% D3 M
- WiFiMulti.addAP("wifi ssid", "wifi password");
. y) R/ O8 c; t( x/ c - int tryNum = 15;
, |. X) W. s' H+ ?4 @# ^ - Serial.print("Connect WiFi");
/ A1 N# d* \9 W - while (WiFiMulti.run() != WL_CONNECTED) {
; V9 X# \" w5 @( r - digitalWrite(2,0);( V& u4 r/ W) R6 q6 ^% f
- delay(200);* x9 _) q/ y1 q
- digitalWrite(2,1);
2 f- N- O; B$ D1 d& w2 O5 c# B - delay(300);8 `$ E( R' d( [, l
- Serial.print(".");6 A; w4 v# s3 [2 K6 K3 w
- tryNum--;: B, I* a& O5 ` c0 a0 F& A! T
- if (tryNum == 0) {
+ U( Y0 N$ D) f0 }6 \: P$ X% ]' q - // 1min$ O* b) l# Y1 O8 X
- // ESP.deepSleep(60e6);# ~( c& r& ^6 O" o6 n) y; A
- ESP.deepSleep(0); f# K* o/ s5 r: D: t) n; J
- }9 n# n p' V2 m' ^1 ]- l* z! r
- }
7 p1 J" y7 L0 K5 _ - Serial.print("\r\n");+ J% K2 M$ S8 I; r
- digitalWrite(2,1);
# C B2 s) U/ Y- P - Serial.print("IP address : ");; `* U# h5 S! Y/ j
- Serial.println(WiFi.localIP());
8 s8 {+ z, `7 D4 b - server.on("/", HTTP_GET, [](){, y8 t M4 ^$ }+ j# X% k
- server.sendHeader("Connection", "close");
! t# }# I* x6 d) a% a' @- b* E - server.send(200, "text/html", serverIndex);
v1 u; c0 R, K; g P - });
$ b, @4 \0 G5 W5 r) H' @; B" Y! e - server.on("/update", HTTP_POST, [](){" C" B- v! ~" A k
- server.sendHeader("Connection", "close");
. A0 L3 ?/ j& m& B% a" w - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. H' [- K# x+ t# e! m - ESP.restart();' A! Q8 v9 ~" ^3 z
- },[](){2 r: @: K! c+ S- f
- HTTPUpload& upload = server.upload();4 X8 J) O9 ?5 R/ ~# `5 |
- if(upload.status == UPLOAD_FILE_START){
8 X" N6 t6 @1 ]4 A2 g - Serial.setDebugOutput(true);# I9 Q; J6 c8 y) Y" c# b
- Serial.printf("Update: %s\n", upload.filename.c_str());
9 }" K: i9 n0 T) l1 E4 D5 r - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 x$ |/ o% g) |. B4 F0 Y - if(!Update.begin(maxSketchSpace)){0 |6 A& P% p& \7 m' i0 c" B* O
- Update.printError(Serial);# \; o$ o0 n7 L% Y; L
- }
5 M( g' C! D( [* l, ^ - } else if(upload.status == UPLOAD_FILE_WRITE){9 f3 K: u& Q4 K- _
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 x, B; X! S% `3 J - Update.printError(Serial);
& E2 _- J' ?+ M, @2 K+ C - }4 |; X9 Y* d& Q0 h8 _3 u1 S5 C$ z
- } else if(upload.status == UPLOAD_FILE_END){
8 L# G; @2 z8 E# w, Z% q; K - if(Update.end(true)){
+ y3 p0 g# A0 Z1 I0 t6 | - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! b1 m# [3 ]* [/ \+ o
- } else {3 } n; D5 K9 I% e# w1 O
- Update.printError(Serial);
7 U9 s, Q- d2 ^( H& E: U - }) Y, ~4 L* @5 u# Q/ G4 G) Q/ p& I% Y; M
- Serial.setDebugOutput(false);1 K0 E# v; k1 g+ _! A5 d. o4 k& i+ c
- }
4 V% e0 D/ d0 h: d3 F; ~3 c - yield();6 b7 z# q$ h: M# F" k7 H9 {
- });5 [0 {; y& p, z
- ' S) H+ h$ o+ `( W3 ^, ]
- digitalWrite(2,0);
4 A5 y; h+ G3 ]/ X1 L9 a - mainAction();
9 A) |4 I# D+ M' I( U) b - if (digitalRead(0)){
$ |, z A, a- ]: ~' l2 z - ESP.deepSleep(0);9 e6 d" F; Q8 ?# x4 ~: q R! ^% P
- } else {
5 V: |1 i Y' S6 F8 f8 @ - server.begin();
: ]& ^2 \& n' S, o" w - }
) u) W. M! J+ K" P3 H" F; x - }
6 N# b! C8 y" P6 x5 _0 N+ n - void loop() { Z7 T1 n b7 j1 l" u
- server.handleClient();
2 F9 P/ @! y s( _ - delay(1);% N& |2 w4 O4 O6 ?; |6 f
- }
2 y. v* t+ b- Z5 c. j& d- X8 D - String doGet(String url){
5 Q, u# i$ P0 j! _ - if ((WiFiMulti.run() == WL_CONNECTED)) {, ]" X. ^. A: x, J2 g' C
- HTTPClient http;* ?/ M& Z/ w6 q* B5 ^
- Serial.println("[HTTP] begin...");& }- A: }# Z, c6 M, h; e8 n" e+ r
- if (url.startsWith("https")) {
1 k! { D4 l1 s+ c9 C, a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) z& G5 e+ e/ S+ h4 y - } else {! \) u: e* o+ P' F9 ]. Y
- http.begin(url);; S4 r, B8 I* F% b W
- }
& F5 o3 v w: i - Serial.println("[HTTP] GET...");
4 t4 X2 k' A6 A& N - int httpCode = http.GET();
) v# i# ~( W5 h; } - if (httpCode > 0) {# r7 X$ B4 _! R. |. l
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 N" \! U, f; P - if (httpCode == HTTP_CODE_OK) {7 `9 w+ {+ b( @4 v* ]. K
- String payload = http.getString();/ @" {& i; Z4 L
- Serial.println(payload);2 ^1 E- W9 `$ c& u3 {) p
- Serial.print("\r\n");; R6 u$ e$ z% c: D- x4 h' X
- return payload;/ {* S: X4 ]2 H5 P; G
- }
/ ?7 \$ \- Q6 x* B1 U& R3 ? - } else {
" f! |, P6 t& T# f - Serial.printf("[HTTP] GET... failed, error: %s\n",
/ G$ j ?* D& p( V8 H' I - http.errorToString(httpCode).c_str());8 ~) t4 _1 q, p) f" V, x% |
- }
4 t' M* B! p" ] @ - http.end();
; m6 h" t, N6 |6 y& ^- m" M1 o - return "";
; \. f: X8 k8 g; B) M+ k - }
- A; f# K J! M; S7 Y - }
+ k% d! Z5 P" c9 H& V( \/ p - void mainAction() {, L, r+ j; S5 G o- `
- // 发送请求
, j. ?) G z4 S) w - doGet("http://google.cn");
4 ]" s% R( c& U. m - }
) v; {5 c5 c" m# }: h$ N
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