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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)
* u0 u9 ?# Y3 J N+ d% f# p. Y% [ r- #include <ESP8266HTTPClient.h>" b/ b: K. x8 ?& x0 ^5 f* \( }
- #include <ESP8266WiFi.h>
" Q2 o) i. ], D - #include <ESP8266WiFiMulti.h>. V+ ~$ y6 w9 c: e$ G+ x- Z6 G
- #include <ESP8266WebServer.h>
% E1 g- @4 v; {3 q$ I3 F - #include <arduino.h>; r H3 L/ e; f# o; ]
- ESP8266WiFiMulti WiFiMulti;0 I# K+ {8 i6 V
- ESP8266WebServer server(80);. }8 q6 ?" n! n* G" J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 p d0 b' n) T5 Y3 x - ADC_MODE(ADC_VCC);
P. ]; H0 S- m, u+ } - void setup() {
: `7 U I& n& P! ~) o) Z- k% U9 U - Serial.begin(115200);2 q. {1 q+ _. |. c: r
- Serial.print("\r\n\n");
$ N( M. E) d* d7 U - pinMode(2,OUTPUT);8 C( k8 x5 u8 ` q, @7 Z! v
- // WIFI5 o- R# e0 I) b. S6 _/ h
- WiFi.mode(WIFI_STA);
! f. G! v0 o5 J/ J - WiFi.hostname("Sparkle");
) m$ }) u4 i$ T6 k- n( u - WiFiMulti.addAP("wifi ssid", "wifi password");1 z0 a3 h0 P5 ]- L" `' o3 D
- int tryNum = 15;
4 E& `4 D" D# b* b - Serial.print("Connect WiFi");
% s8 l; ~: y$ n - while (WiFiMulti.run() != WL_CONNECTED) {
9 @8 W' z% i3 T" u) `2 H - digitalWrite(2,0);
6 T6 _. g$ k1 R$ V& z0 Z - delay(200);3 x& |; _8 N- y& m- W
- digitalWrite(2,1);
. Z# ^4 C: x, u( P - delay(300);
) [8 D& n n& G5 I - Serial.print(".");
- T1 r7 q; U N5 H& C - tryNum--;, U2 @4 N' V2 G! K9 k
- if (tryNum == 0) {: @% r ]( }* z+ Y% b6 L: F
- // 1min
" X% X# ^8 J r' F" X" q - // ESP.deepSleep(60e6);
. V# p. V' x/ |. q. \+ P - ESP.deepSleep(0);
1 |" S% b/ N {: A - }
; G" ~( V0 W. h3 W - }/ N) l; g0 i' ~4 q! I/ {
- Serial.print("\r\n");
8 ?# A$ D* B# p: L$ u; c - digitalWrite(2,1);
% [+ v, Y$ f3 r! f D# J2 x - Serial.print("IP address : ");: o% G$ R+ r* k& N7 _
- Serial.println(WiFi.localIP());) Q: T+ d1 Z3 r7 R) L4 X- x
- server.on("/", HTTP_GET, [](){
2 l9 _2 o" w! d% H$ h5 |( b - server.sendHeader("Connection", "close");1 ?% c4 l3 A; P9 G7 M
- server.send(200, "text/html", serverIndex);
/ |/ r8 ?7 i+ L* W - });
p; U/ R" x4 B7 Y - server.on("/update", HTTP_POST, [](){
5 O+ Z; D7 J( A - server.sendHeader("Connection", "close");. m( @6 l/ ^ p1 e" Q; {. I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ w& t% ` m1 z9 b& S! z9 K, o+ G - ESP.restart();4 ]+ Y+ F2 h1 I$ B* ?$ m
- },[](){! ?: R, b$ n5 V; }2 [
- HTTPUpload& upload = server.upload();
" c2 ?8 o" x' o+ M4 } - if(upload.status == UPLOAD_FILE_START){
+ Z8 ?9 H5 m" i+ w7 q - Serial.setDebugOutput(true);
" `/ L6 T% p) y& D V# k - Serial.printf("Update: %s\n", upload.filename.c_str());8 F L, r0 d9 ?
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" e0 v; R+ R% |9 Q( l, M' i
- if(!Update.begin(maxSketchSpace)){
2 c d: `, k4 N7 [ - Update.printError(Serial);( l/ {) A2 _* S. s1 L( E9 A6 D
- }! @5 [2 \) X& [* u( D
- } else if(upload.status == UPLOAD_FILE_WRITE){
C3 F! C" c# ` - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ B* V6 J* }; U: s7 N
- Update.printError(Serial);0 L2 ]0 n2 A' i/ R# y' v! f
- }
+ d' D3 [% E) K$ h0 d: F2 q - } else if(upload.status == UPLOAD_FILE_END){
+ W- p6 R# Y: E3 n' _1 y G- Z - if(Update.end(true)){/ P# o( \( D0 ^& V
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% P( U8 d/ G1 ]& j' Q2 k - } else {5 F8 H6 \+ C5 d: T" u
- Update.printError(Serial);
& g$ K# Z! |) J* A$ ` - }0 }+ u9 k% }0 _/ v! }. C4 b
- Serial.setDebugOutput(false);0 O- K0 o- m5 a5 D& R
- }* m+ p. u6 p0 K( `
- yield();; ]( v3 D) _( X, F4 y
- });& T7 J- {5 w! g) z
-
& Q1 m1 U6 {4 P. u# G - digitalWrite(2,0);7 o# L4 b- |. x4 `+ @
- mainAction();9 {+ q" l0 ?: Z+ D, M
- if (digitalRead(0)){
* Z `0 S }2 ?# V: b/ ]% l* o - ESP.deepSleep(0);
3 }( R w* E$ i% K" } - } else {6 k% G- N9 x% r' [ r j
- server.begin();( K9 S' h/ Q6 f
- }
7 m' t( G9 J" x - }8 W* ]4 R' O! Q* a- S; u
- void loop() {
" v( H5 u9 {4 U" J - server.handleClient();
3 v8 p$ n, E7 b& E - delay(1);
+ {9 @$ O# \5 q* Z1 ~4 f - }! u% A5 V- V! e; L/ Y+ p0 K
- String doGet(String url){5 d7 K1 a5 z3 ] J% o. ] q
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 e# z8 M' o& c6 c _0 U' ~ O - HTTPClient http;3 H. U* u( Y2 W9 {
- Serial.println("[HTTP] begin...");+ v6 H( y# j4 x: W p" i
- if (url.startsWith("https")) {
- |- j) N' {, V2 l% ^ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( n: B3 Y# @2 H, ?; a
- } else { f6 }! M* B5 a
- http.begin(url);
& X( J$ b& ~" b8 g1 X5 Z; p& g - }. I2 M2 J" P) e2 ~: v
- Serial.println("[HTTP] GET...");
7 `, ?& I" a1 L - int httpCode = http.GET();; D; S4 q/ V) {" s/ y9 o9 B" z
- if (httpCode > 0) {
+ a2 S# `7 g R B* H5 V2 u- | - Serial.printf("[HTTP] code: %d\n", httpCode);
$ J, j+ Q9 `4 B' g9 d; d - if (httpCode == HTTP_CODE_OK) {, u2 J5 w! r4 ~$ _
- String payload = http.getString();) z( L& Z, J$ h% [; @6 h
- Serial.println(payload);# w; g+ O( k3 S" _
- Serial.print("\r\n");3 E: ?7 F) D) ~5 s* v! q* b
- return payload;
`/ p6 U: s% g8 B5 u3 D7 y! ^ - }
! |3 u" |6 I3 a - } else {
) _/ v" m/ l; `4 [ - Serial.printf("[HTTP] GET... failed, error: %s\n",4 s; O' Y7 m% e
- http.errorToString(httpCode).c_str());: u1 j7 |6 f) w( G) q* N
- }& z$ A4 u1 q4 x: p) I8 X( M- I
- http.end();
* y3 V' ]! r0 N, J - return "";
- x; k8 \' O$ u# O* L7 I - }
9 ]8 W' m5 @7 z- \& R# d - }
; c# G/ S; y) U5 s - void mainAction() {( w: x) K5 @+ t/ r/ W
- // 发送请求
" z' b1 r' g' p1 m - doGet("http://google.cn");8 j2 ^0 C4 ?/ F+ n( y; R
- }
1 V7 f+ n! F: M4 {7 c) h
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