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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)
" a3 l" A/ y2 b5 Q) a+ b6 Q1 F9 T- #include <ESP8266HTTPClient.h>7 \) E8 K: G$ g$ O
- #include <ESP8266WiFi.h>
8 F K. t* H* N6 ^1 R: Z - #include <ESP8266WiFiMulti.h>
2 r+ K# z9 Q) j2 w# m1 D - #include <ESP8266WebServer.h>
) }' }5 m4 i" Z+ y - #include <arduino.h>2 h6 z! ?& j) ~+ l9 P
- ESP8266WiFiMulti WiFiMulti;1 _' P% v# T$ p# v* a
- ESP8266WebServer server(80);
3 |8 a+ i$ @' d$ E+ R - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 J" [* z% \0 } - ADC_MODE(ADC_VCC);
( P: x; @5 f6 [( h' v4 T& B7 ]1 m - void setup() {
; A d$ }- K3 v/ {3 |4 z - Serial.begin(115200);
- \/ g! y1 R2 i+ V, F% W - Serial.print("\r\n\n");
5 G0 d! f% Q) `" s& J - pinMode(2,OUTPUT);2 t A1 `) _ ?! j7 r
- // WIFI
. e8 g3 i1 e2 V a- ?7 Y* b - WiFi.mode(WIFI_STA);$ I' ]% X. Q* x8 q5 T' m/ k
- WiFi.hostname("Sparkle");
2 ]9 ~4 A4 ?$ I: ^' M# ] g/ @ - WiFiMulti.addAP("wifi ssid", "wifi password");
5 v+ e6 Q! `8 c - int tryNum = 15;0 x4 h$ q1 m+ @9 i- A% _
- Serial.print("Connect WiFi");
u5 g4 w& `+ F9 x- k% w. K - while (WiFiMulti.run() != WL_CONNECTED) {
; Y$ q5 x+ t# B4 ~' ]; K# T# P - digitalWrite(2,0);
j% S3 y+ }! N" L% F$ T. ?+ e: Q, F8 e - delay(200);
' p3 L$ P" O, L+ l - digitalWrite(2,1);# f4 B- ~* l2 o2 p+ L
- delay(300);
. ?1 d; I2 Q- |7 R - Serial.print(".");
6 _! P8 a% Z9 A- N - tryNum--;% p# G0 I: J7 x ~ s: \5 Y& E5 {
- if (tryNum == 0) {
8 I2 ]2 f3 X% C$ [8 R - // 1min
, U- y# ?9 o1 ?. a - // ESP.deepSleep(60e6);
3 C% j- Z. |0 B8 ^/ M1 i - ESP.deepSleep(0);% f3 H0 ^7 i: D
- }8 A: ^9 D6 ?2 I: J9 a& ]
- }# M9 D0 ]7 c6 S
- Serial.print("\r\n");
2 @0 g" n7 j& h$ |: u - digitalWrite(2,1);
& f0 C) n' R2 u. _ - Serial.print("IP address : ");
& f+ c: V/ c! E6 r - Serial.println(WiFi.localIP());
) P1 a) `. M5 L$ } H/ _# h) i3 B - server.on("/", HTTP_GET, [](){+ ~* j. P& y7 t
- server.sendHeader("Connection", "close");# d+ |% Z: h" [) t" [
- server.send(200, "text/html", serverIndex);
" }$ E0 R# |& s, i8 s( d5 O j& m5 b+ f7 C - });! l1 S/ o1 `) b+ M- U6 P
- server.on("/update", HTTP_POST, [](){2 M# s3 r$ p D9 z
- server.sendHeader("Connection", "close");
5 o% j6 V5 m/ \8 q! S- U5 w - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ }. r% p' {* M - ESP.restart();3 J4 [7 G4 }& v8 A& Z6 o {
- },[](){; m) U9 _) y' }1 x- K7 R b/ d
- HTTPUpload& upload = server.upload();
9 a g0 H) Y' ?2 { - if(upload.status == UPLOAD_FILE_START){8 k# |0 r) ^3 ]# Z, \
- Serial.setDebugOutput(true);
* ~& E; m: g1 y4 v8 v" W& ^ - Serial.printf("Update: %s\n", upload.filename.c_str());
, |/ g. n7 N! W7 v) h - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 h+ ^& Z9 `& A/ U( V
- if(!Update.begin(maxSketchSpace)){% m3 {& U9 N w2 f1 A
- Update.printError(Serial);
/ K1 s8 B; C% W - }
+ N1 i2 Y4 w( p8 t; I& D }9 u - } else if(upload.status == UPLOAD_FILE_WRITE){& |( U$ x' M- `2 [3 U8 n! k! p
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){4 k0 j* r- s, k* f, o9 J
- Update.printError(Serial);
9 ?% n& b. A; a, {% p* j3 A - }
o" t8 [2 G7 w6 g# r9 n; y3 D - } else if(upload.status == UPLOAD_FILE_END){
5 x9 z, S, I- _( ~) }7 _( ~) _ - if(Update.end(true)){9 V4 p. I6 }* k X1 k& o6 f" Y; @& |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 a5 f" U% @( G e) u: x
- } else {, C! s5 ~" |4 A& t' b, u" M- S3 X
- Update.printError(Serial);
& j z) B. H; j6 _5 { - }
7 a% Q: q1 X) g( d! v - Serial.setDebugOutput(false);3 U6 J# d; Q2 {4 r% U
- }8 g, U S" K. l. {. U) S
- yield();6 [, h4 x" M7 e
- });7 _8 t y( Z- A0 Q$ R* y. R
- A- L0 Q6 w& @# _1 C# R
- digitalWrite(2,0);2 I* O7 K" U" \" r
- mainAction();
3 \+ Q1 |# J7 ~9 B - if (digitalRead(0)){
0 _: [" O& a2 U% U5 M& c - ESP.deepSleep(0);; {- y0 u1 _9 x# r) ?% j6 L+ k
- } else {
6 ]; \: w( W0 a4 v* Y - server.begin();) ~! G, b; I/ H( a
- }) E$ B1 q9 f% ^, \0 ]! t
- }0 U% L3 }- G+ x" l8 r4 h
- void loop() {
0 j+ r3 [" s- k8 b# D - server.handleClient();) s5 O9 K+ Y: S* ?
- delay(1);7 ~% q; M% [) B' S ?
- }) K6 w& @! b% K1 t
- String doGet(String url){7 ~" M; N$ i9 F) h
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! L' _4 |/ q) S |3 B - HTTPClient http;
5 Q& {" v1 [; E5 Z( H( C: m5 A* R - Serial.println("[HTTP] begin...");
- T+ L3 A) \5 A+ E' |/ a - if (url.startsWith("https")) {
4 L4 F0 H0 q* g2 Q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 q- B* g3 I3 c. G6 O2 u" |
- } else {8 A- M$ Q- U' Y' }
- http.begin(url);! d' r/ E4 A5 O3 `$ [4 [* J" a
- }
+ O1 T" G5 k+ k Z# Y - Serial.println("[HTTP] GET...");
* N! q0 j0 `& D$ w0 k2 p8 x o - int httpCode = http.GET();% @% o1 q r0 P6 s8 |
- if (httpCode > 0) {8 n m0 G. c* G8 C/ E o
- Serial.printf("[HTTP] code: %d\n", httpCode);( o: v/ m# | r, y5 B" _
- if (httpCode == HTTP_CODE_OK) {! r$ U; t8 \4 V
- String payload = http.getString();5 k/ W7 [% f! a, J/ X
- Serial.println(payload);
6 m& [; f) y$ A @" d. Z7 P% r4 _6 o - Serial.print("\r\n");
+ x1 L0 i- w: j+ }" D% _ - return payload;
7 L3 d, I) i4 \0 Y, J; a0 v - }, l2 _! w* ]4 {, G" K! a" T$ d
- } else {
0 Q, D1 X0 `3 ]; y - Serial.printf("[HTTP] GET... failed, error: %s\n",9 }8 O& k. n$ \. A- f% r
- http.errorToString(httpCode).c_str());0 I$ `' k- e) a/ x2 W8 Y
- }
" X) b6 D9 J$ i( H* h9 w - http.end();
1 @5 K; ?9 g$ d- E. b* H - return "";% R0 [! H. R T1 P. U) N
- }
5 }. [1 ?) e7 q6 w7 y - }
# U' y+ Z6 ?8 C5 |5 R - void mainAction() {. z4 c# |; k2 C! u
- // 发送请求
8 m% R$ n8 r5 N - doGet("http://google.cn");
# D+ P6 D% ~" J8 _; B1 o% B' E5 u( R - }
$ ]4 u* N& A& R4 H
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