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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)
G8 p4 e8 h- C+ d) C: B- #include <ESP8266HTTPClient.h>
6 W. `; J& B3 ~1 K - #include <ESP8266WiFi.h>
6 q- |/ o7 Y$ b4 ^. p - #include <ESP8266WiFiMulti.h>
5 V, ]) {) N( {6 W - #include <ESP8266WebServer.h>! @. f$ t# l* w9 E. x" B
- #include <arduino.h>1 d; X8 p) |# ~- g# x
- ESP8266WiFiMulti WiFiMulti;
% A* x% m# h5 {- r! W - ESP8266WebServer server(80);
+ ~5 m$ f6 ^3 @' W - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( @; J" n( h- @ - ADC_MODE(ADC_VCC);0 C5 G. c1 j) b: h6 l5 p
- void setup() {' b! D8 y/ L% `& X/ {' n
- Serial.begin(115200);% \" U1 F# ?+ i0 ~+ w/ G& F! E" F
- Serial.print("\r\n\n");& C$ N9 t" r5 |; E
- pinMode(2,OUTPUT);
# Z3 V2 v# j. i# X: D; L; Z5 }' C - // WIFI
! F! A# ?. n4 f& s - WiFi.mode(WIFI_STA);6 J( h, Z# ~2 Y; W* r8 ?
- WiFi.hostname("Sparkle");) [; z6 l+ u) o p3 U+ o+ g
- WiFiMulti.addAP("wifi ssid", "wifi password");' k7 w( g1 L& u3 ?
- int tryNum = 15;/ s/ s: V1 U$ M# o$ L; Z; B9 B/ o
- Serial.print("Connect WiFi");9 R0 I1 s% f) e9 Z) y: X
- while (WiFiMulti.run() != WL_CONNECTED) {$ Q s% Z& Q1 ~4 W2 Q
- digitalWrite(2,0);
, Q$ _+ `. e+ q( U# [+ t3 s - delay(200);
5 P: j& p9 e" W" U - digitalWrite(2,1);% B6 T/ A, l5 ^' }9 S
- delay(300);
3 q" `2 k9 I' I- ~ G/ L - Serial.print(".");
- o! t' f) @1 J* [6 n - tryNum--;/ K2 l: F7 e9 M1 z4 g, b1 p
- if (tryNum == 0) {
1 J' _' B8 G: w4 [ - // 1min
, ]" N# ]6 f e+ v - // ESP.deepSleep(60e6);7 @ l6 q: J+ {) k6 t
- ESP.deepSleep(0);2 m1 @8 F9 ?0 J- p7 J1 `) f _
- }6 S" b. Q! o K7 o( g% o4 G
- }
' M2 h' R2 c! @: Q - Serial.print("\r\n");$ W: _: r9 f" \* p9 Y x4 ~
- digitalWrite(2,1);& _; o1 r" L2 o: B- S/ v/ x
- Serial.print("IP address : ");
1 G# q. d6 f8 C' C3 Z6 L - Serial.println(WiFi.localIP());
; `( s0 {) g, x7 c& ~- s - server.on("/", HTTP_GET, [](){
d4 y( w: {2 ?0 g& ~ - server.sendHeader("Connection", "close");6 ]/ f$ r7 ]" ]3 ~' o) F3 d$ ]6 s9 X9 d
- server.send(200, "text/html", serverIndex);4 v- G3 k; |8 V4 _4 a/ l
- });9 g1 h* p/ K: R7 t9 K" I
- server.on("/update", HTTP_POST, [](){
/ C+ Q" \8 ?( X( F }5 \8 L - server.sendHeader("Connection", "close");& r }# z( c" a$ y, c) I$ h3 t
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. a: u- ]9 h( N! S) D - ESP.restart();
% [" X$ {! ~+ s, v - },[](){
& n+ O3 u, [+ A - HTTPUpload& upload = server.upload();
9 c' U( j" E8 q' u' K* p0 J - if(upload.status == UPLOAD_FILE_START){
( b6 p5 m" q$ E - Serial.setDebugOutput(true);/ L- g! o5 C5 p# M3 j- f6 ~7 {: m
- Serial.printf("Update: %s\n", upload.filename.c_str());
- `/ q3 d2 |1 n8 a, [* I2 D - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 e$ `' s$ K9 \2 E
- if(!Update.begin(maxSketchSpace)){2 F3 Z2 \) x4 K
- Update.printError(Serial);
6 H& v, G' O, ? K6 z+ y( `% W) F8 k - }
* z# S) G/ @8 x/ Q( L/ x - } else if(upload.status == UPLOAD_FILE_WRITE){& Z; `# Y$ t, t# ~
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& N2 t# l& x* ~) g - Update.printError(Serial); d6 p- P, `1 M, F+ J
- }
) C/ V4 H, _+ _: b5 ~2 z - } else if(upload.status == UPLOAD_FILE_END){
) G+ O% L( Y& `- f - if(Update.end(true)){( m I6 ]/ m2 @! X1 v/ Q$ o, t: ~
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. S' r/ X+ t9 x8 J - } else {
7 `. L0 q; G! f/ } - Update.printError(Serial);
- {: R* q8 ]( o) o( @* t6 U# ~ - }
- s, t6 R9 [; z. v - Serial.setDebugOutput(false);
4 v; I+ }3 V9 B: o5 x0 O - }3 v. t" i, q& \/ w: F z+ q4 n( m
- yield();1 L) {) a. I/ {) ?: n: n0 ~1 N" H: P
- });
$ ?& T8 U1 g" z" a# V - 0 U- W1 M7 Y6 z" r% D' ]4 a7 k! _
- digitalWrite(2,0);! b7 F* }) A& V/ C9 g0 P: v
- mainAction();! j h8 k; i k. m, y
- if (digitalRead(0)){
8 T+ A |: S6 j/ n - ESP.deepSleep(0);
5 \7 f o1 [8 o- j, e - } else {2 `& \6 Q6 m( ~( E0 ~+ X, n
- server.begin();+ \8 A- v4 j+ n/ A9 e2 _: \
- }
4 W+ T* t& T- a5 Q/ c: i! a - }1 E* d# ?2 \* y& V# a' @
- void loop() {& V* B4 C% \3 c# l/ F2 A* H
- server.handleClient();
) T* S& W. ?5 B5 |' y1 X7 G% s - delay(1);
, D: o$ o5 W+ ?; n) G( e - }, L6 Q( T' R6 m5 c* `3 t6 F5 ?1 a( V
- String doGet(String url){9 w2 v9 \8 {! o
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 m4 |' n3 p |6 e' Z; I! L/ a
- HTTPClient http;
" ^/ k1 s n8 B) B$ P5 u C - Serial.println("[HTTP] begin...");/ L8 x( L" R: N- E+ b) j# F$ p
- if (url.startsWith("https")) {
# C7 N5 h/ z: \: E8 Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 _/ L# a$ {% D - } else {* |/ G: h9 w) [( U
- http.begin(url);5 A4 B1 M( C- K2 ~# L! @& q
- }
. m' L9 g _6 H# `2 @" I - Serial.println("[HTTP] GET...");
7 R z6 W8 X; v: [" k - int httpCode = http.GET();
& V4 \8 b c; _9 T" ] - if (httpCode > 0) {
7 Q$ F6 M& \. N; l3 A5 o9 k9 S5 V' @ - Serial.printf("[HTTP] code: %d\n", httpCode);1 Q/ U+ `5 a& R) T# ]
- if (httpCode == HTTP_CODE_OK) { v% f" X: k) t, l+ m* r/ N9 D
- String payload = http.getString();
3 Q1 c( R" _+ g$ |- t8 F - Serial.println(payload);
7 G# d& ^% |# P+ e. s$ p - Serial.print("\r\n");" N0 W3 ?9 d( [2 K
- return payload;/ O% L# v/ y2 q
- }4 n K. i' w7 G' v+ m0 Q; w( J
- } else {
2 I/ q% L+ s5 W% g+ u - Serial.printf("[HTTP] GET... failed, error: %s\n",
6 h7 N! z& U7 j$ W# V/ t2 ]: L - http.errorToString(httpCode).c_str());
$ ]& }6 C0 i3 E - }7 Z& Y0 S( ?& ?% p6 @6 O
- http.end();: ~; c: O* ^! m5 h8 K/ z$ [' Q/ u
- return "";
5 Y" E8 d1 s- @ C+ c- }, X - }
& E* d6 V4 o1 T - }
+ U0 z8 s5 r# k3 M - void mainAction() {2 U/ Q7 \6 m5 r5 {6 W
- // 发送请求# l8 X% n; m, j' b7 o+ q0 w
- doGet("http://google.cn");
0 i0 x% |+ N: n6 M( A" E - }
( B# _5 @% L! j* R
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