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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)6 c4 ?- G9 U1 o) J6 o* F- D
- #include <ESP8266HTTPClient.h>
; T" c. u! k- i. }; z - #include <ESP8266WiFi.h>
& W' u2 ]/ w$ k8 w& i2 g5 t - #include <ESP8266WiFiMulti.h>% d( A, v1 y% Y/ f% {
- #include <ESP8266WebServer.h>6 \% u6 ^" _/ U3 M
- #include <arduino.h>
. \/ G- h( H7 @( I - ESP8266WiFiMulti WiFiMulti;
4 F- @8 z+ ^" i" v( |- n5 z - ESP8266WebServer server(80);
( V& n+ a, V: C# D - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, z$ S. E- g% `& P
- ADC_MODE(ADC_VCC);& \/ x5 D: \6 U& e$ y. Q
- void setup() {
* T( F4 n' T8 ?" u - Serial.begin(115200);
- P- m k, }( Y0 ^1 U( }9 p h - Serial.print("\r\n\n");
. g% }! C/ D- ` |- L - pinMode(2,OUTPUT);
+ t9 j# a# f0 V9 q# S. I' M - // WIFI
: o' t% v) n6 i- T - WiFi.mode(WIFI_STA);
! o9 X% v+ |, d H3 s - WiFi.hostname("Sparkle");+ X) {. H( z. F' @/ p5 o; Y6 Z
- WiFiMulti.addAP("wifi ssid", "wifi password");
g9 h. n( p7 ? - int tryNum = 15;
9 K% i0 h$ b _5 O$ X - Serial.print("Connect WiFi");3 t! f7 W* F" l( G b% R
- while (WiFiMulti.run() != WL_CONNECTED) {% y0 e1 p+ h2 @" l7 I* ]0 Q
- digitalWrite(2,0);
3 F k# \5 y0 D7 {+ A - delay(200);
4 v% a, X, X8 U9 [( T - digitalWrite(2,1);
/ u) Z& U8 x, E+ j# r; m4 g - delay(300);" M% `7 M7 U, k8 H0 c. n
- Serial.print(".");
7 k5 C. m3 v ?$ W# o - tryNum--;
' y+ n8 w" O+ x' x% X4 P( p+ J - if (tryNum == 0) {
" Q! K4 r. P' f# k P' {3 h - // 1min1 O9 Y/ Z6 n$ l$ v
- // ESP.deepSleep(60e6);
- y" S- k8 z a& b/ {! ? - ESP.deepSleep(0);
2 a0 G- H; [, k; f$ R* ? - }
8 ^( x- }/ ?* j. S) J8 r% {2 I - }
" i: O) _0 t+ v* r4 A4 F3 m - Serial.print("\r\n");* a7 ^$ [9 _7 F9 C
- digitalWrite(2,1);
' p( \; B7 p. c/ U7 W9 R! l' v' D - Serial.print("IP address : ");
" f! H9 f! Y/ Y/ x& J3 m8 ? - Serial.println(WiFi.localIP());
q# G0 X# \/ y0 |1 C7 m6 f3 m - server.on("/", HTTP_GET, [](){
! h( ^2 ]% u, L9 r# P; l# L - server.sendHeader("Connection", "close");
% K$ ]. T6 R$ K, Z. O; z8 w - server.send(200, "text/html", serverIndex);9 Q$ c2 P* b2 H& {" O
- });
1 c8 J2 }1 M: E8 K - server.on("/update", HTTP_POST, [](){
! B1 O! r }+ `$ u+ ?+ o - server.sendHeader("Connection", "close");7 m1 _0 G' W8 L( `0 I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) Z9 q9 `3 u4 r/ e9 Z( ]
- ESP.restart();
# ?' p, V% Z7 E - },[](){
0 a# Z" S! ^4 s( x7 C; R3 O) W - HTTPUpload& upload = server.upload();
- n' y( K& ~0 n6 f - if(upload.status == UPLOAD_FILE_START){5 Z( t- p2 @2 ~& X- {0 y, [
- Serial.setDebugOutput(true);% }1 G; V+ O- C& }( S
- Serial.printf("Update: %s\n", upload.filename.c_str());! T9 p8 E+ [: L @
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* I6 G! Z/ P$ T3 a# \ - if(!Update.begin(maxSketchSpace)){# J9 \ M2 z# R a/ w! t* S. X% W
- Update.printError(Serial);
3 g6 E4 \0 Y& M& N! p: s) U - }
1 g" [' R# S# O: F# s5 v( D - } else if(upload.status == UPLOAD_FILE_WRITE){9 A" [$ R' g6 V8 @( t
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% Z& \) i/ M& A8 X - Update.printError(Serial);
/ }% \* P. g9 p+ w' k - }
3 a6 p/ A. T, [ - } else if(upload.status == UPLOAD_FILE_END){
- u7 z5 u+ ^# J4 C - if(Update.end(true)){
/ S, M; _" o2 P, b4 A& @1 V* _7 v. O - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 Q1 |: C% L2 \/ J; x - } else {
6 A6 q2 h0 v" R7 \' L& F8 Z1 K5 d - Update.printError(Serial);0 V; I; g5 R6 j; N9 Q5 t7 n+ W
- }0 ?7 f: {' I# H& O& G7 \
- Serial.setDebugOutput(false);
' Q4 |& l0 c: W5 d+ z - }
4 S- h1 k" i5 |: j+ Z - yield();) P/ E4 T Y8 @# e
- });1 o8 e! e* p: k& O u
- 2 D9 G) V; l. S1 d4 ^( U
- digitalWrite(2,0);
% P, k) V# J, _ - mainAction();
- b, O n8 e2 Z4 H8 r0 V - if (digitalRead(0)){
6 ^+ ^1 h3 a8 {! h9 o$ P - ESP.deepSleep(0);" E& l& S1 E& z4 k8 s1 y: |' L
- } else {- `8 c$ v6 I# s
- server.begin();$ f% a: [# r3 Y& [, X
- }* I% w9 a6 o" G$ u8 Y
- }
- a, ?( p0 n2 A; _8 } - void loop() {
9 O: c. W5 h2 K1 S$ X3 i8 S - server.handleClient();; d n- ?7 ~ M6 `* W
- delay(1);/ ]9 A9 U# t4 \
- }: t/ ~+ N0 X$ P n1 t
- String doGet(String url){# p: S2 o9 N' F7 I
- if ((WiFiMulti.run() == WL_CONNECTED)) {# X" Y; p1 [: I- s+ s: q
- HTTPClient http;& ~0 D% B- \/ Z+ f
- Serial.println("[HTTP] begin...");+ x1 Y/ K2 [ S& ~7 G+ V g% ?/ q: x
- if (url.startsWith("https")) {% h/ A2 a+ Z2 s( w$ y, u: R' l6 w+ m
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- k: M8 j$ A9 F4 x7 w/ O) `
- } else {
/ B: u1 f& i' ?- R/ U3 y - http.begin(url);
) Q8 x! X1 [- p) b% \ - }0 u" M/ h1 d" B) P
- Serial.println("[HTTP] GET...");
u7 L( j$ ~ n y2 i' w0 ^8 e$ y - int httpCode = http.GET();( J. L. d" y8 e7 i9 X: n
- if (httpCode > 0) {1 N/ A) g1 `0 | x* \
- Serial.printf("[HTTP] code: %d\n", httpCode);
! H, O; J( O X - if (httpCode == HTTP_CODE_OK) {) q) U' ?9 T% N! m4 `$ q9 b2 T
- String payload = http.getString();4 Z5 X8 e$ V7 \* B+ b5 S6 @. l
- Serial.println(payload);( P ^: s! ^: I3 ? T, G
- Serial.print("\r\n");: {# i- ?6 G9 n: h9 `0 L/ m0 h
- return payload;& ^/ @" B" j* y3 Y1 ~3 X; I4 c
- } D* B9 k" C- S5 S# b
- } else {
k% O7 S3 G% V/ o6 @3 Y$ n - Serial.printf("[HTTP] GET... failed, error: %s\n",' k# h6 I! T8 h
- http.errorToString(httpCode).c_str());- r3 L5 ?; _, C) ]* g. l0 X
- }) H2 `1 |+ f) H6 a' K8 L5 {9 S1 `- a/ ]
- http.end();+ F0 k6 d7 G: f) V- V' _
- return "";4 `' j/ [) K, F @6 y
- }
W( O. V& F7 b! z t - }* x& |3 }& n( W6 O
- void mainAction() {
4 ~ k" F6 p1 ?! h( [2 G( @ - // 发送请求
4 l, i( ^6 c6 ?2 R9 R5 I* \3 \ - doGet("http://google.cn");
$ k1 m) e" C7 s! e - }! i- k5 U5 f$ ~$ D$ o
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