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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)
- t7 N. ~' X$ e- #include <ESP8266HTTPClient.h>
* o+ r$ W1 b1 W# s! m - #include <ESP8266WiFi.h>
7 O# y/ c( W9 h2 ~+ N3 U1 ` - #include <ESP8266WiFiMulti.h>
' Y, M' x X3 K+ i - #include <ESP8266WebServer.h>
& K. E3 n z2 j7 C. f9 b - #include <arduino.h>6 Z8 X- P$ h6 ^4 d# ~6 l
- ESP8266WiFiMulti WiFiMulti;8 H3 Q" z0 [+ M$ a4 v# a. {
- ESP8266WebServer server(80);) g5 D% i) \) }
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' C" @, m2 }; o9 L
- ADC_MODE(ADC_VCC);
5 l! _, J0 N% g" j& | - void setup() {
- ?5 h# T+ U4 o2 p8 ~$ q - Serial.begin(115200);' y! F8 \0 M: X0 z# F# f
- Serial.print("\r\n\n");
8 L+ Q5 \1 [: c* f - pinMode(2,OUTPUT);! J* D0 J& [# M ~8 V" g1 Y: P
- // WIFI
* w3 k6 z7 B/ k1 B - WiFi.mode(WIFI_STA);; v: g9 L- x% ]8 o) B6 V
- WiFi.hostname("Sparkle");
3 z3 ?$ s; W0 F3 n( d n - WiFiMulti.addAP("wifi ssid", "wifi password");# [/ ^- v2 o* z( j
- int tryNum = 15;
# m+ b* M& D' S' Y/ O1 G t# } - Serial.print("Connect WiFi");
% w1 q: J$ o6 K: {+ [- s" ~ - while (WiFiMulti.run() != WL_CONNECTED) {
- {; d y7 f6 R - digitalWrite(2,0);$ y$ O7 n3 L6 o- |9 X
- delay(200);
% w# R4 q2 ?3 T& H! [ - digitalWrite(2,1);. T/ A5 w! V5 K r2 r
- delay(300);5 {0 h7 N. K; P% v
- Serial.print(".");
% F6 P& e, r8 \. J0 k' {8 j: k6 ` - tryNum--;
) u% ^7 `) L! j1 y+ O - if (tryNum == 0) {
' N0 X; P6 ?# c" @; V: Q! Z+ ~ - // 1min
) ^! d0 X$ M4 G4 v - // ESP.deepSleep(60e6);
4 i% I4 w; c, c1 k2 U2 a - ESP.deepSleep(0);) p6 l6 O3 E/ E
- }
$ w3 Z+ Z% X5 n1 M - }
' t* g, l4 I& A* o& _" M! r: n - Serial.print("\r\n");
* J1 G8 T- j# B* x+ w! B% w - digitalWrite(2,1);, H( |: S* F) E: O) b2 o# t
- Serial.print("IP address : ");
. C4 R9 d0 V9 y9 O# Y- I - Serial.println(WiFi.localIP());
0 p( K0 F' i6 w' i - server.on("/", HTTP_GET, [](){& o7 L; y: v% a9 V" b; c
- server.sendHeader("Connection", "close");
( J- _6 ^9 K$ `/ @0 y/ q1 h - server.send(200, "text/html", serverIndex);
! w4 A: ?7 \7 M% v - });0 X( f# p* \- M# o
- server.on("/update", HTTP_POST, [](){) V Q5 E0 m, y
- server.sendHeader("Connection", "close");. T: o9 D% ?6 \6 K4 d: D P, e
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 T" Z6 Z6 P; U6 y* \ - ESP.restart();
1 ^& Q) P* U$ i9 W ~4 I0 K - },[](){
, ^% b) Q6 z) M# h& p - HTTPUpload& upload = server.upload();
& L2 y8 \# a1 K# e0 W* o7 ` - if(upload.status == UPLOAD_FILE_START){ _( V7 v5 e' {$ t
- Serial.setDebugOutput(true);
, Q+ ?) B0 Q3 T1 q- R1 \ - Serial.printf("Update: %s\n", upload.filename.c_str());: x6 _/ z% V( Z/ t0 c# z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! V* j; E) E- H: h+ c
- if(!Update.begin(maxSketchSpace)){
- o. C+ X0 H! J$ ?; Y. p - Update.printError(Serial);
! M, y7 U& Y5 c- f9 M' H - }
1 ?3 u4 [$ x& X9 o - } else if(upload.status == UPLOAD_FILE_WRITE){
1 R, |: k6 X5 e" ~( m - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ J% |5 F' Q3 ]( N
- Update.printError(Serial);" _7 l& U2 @1 l
- }
' s% \! F7 W+ l0 g# e) N" l7 D - } else if(upload.status == UPLOAD_FILE_END){3 y/ l0 t5 {- i; U- F8 z
- if(Update.end(true)){: M) W8 e o" Z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ r& n* H6 k' ^. S+ O5 z% q - } else {& P0 e7 S5 I5 f7 n# a
- Update.printError(Serial);
$ @8 O9 d% n+ Y' R - }
7 I, Y8 t7 x4 h, g$ y0 Q @ - Serial.setDebugOutput(false);
+ o$ N) }6 ?* w' y. i - }
* ?( W) V0 v9 h; t6 V! w4 ~! A - yield();3 X0 G6 E1 S, q- h/ _% _$ u. n
- });
5 K8 F9 Q; U& ? - ; r9 E" e, w6 g
- digitalWrite(2,0);0 `, s |6 m X! S1 S4 {" U
- mainAction();" M6 b; \7 B; r6 u3 P( M
- if (digitalRead(0)){
4 S' N: b1 P" i& q2 S B- _ - ESP.deepSleep(0);
: M2 ]$ R1 g! V g: G - } else {
7 g5 B; x; V+ n$ Y! g- J - server.begin();% j# W2 M" I, Y* a1 L! d
- }: n5 _3 f$ G g3 g; @# P8 C, {
- }7 T, F, g3 ?" [5 z( j1 G+ A
- void loop() {
A! N2 C0 @* C9 Q6 r' { B3 T - server.handleClient();% w6 V1 b' {9 h. F
- delay(1);! E$ b2 I5 X4 \7 n; C7 T$ |7 Z# v
- }0 N* m) k* W5 S- z% D* c5 {3 v
- String doGet(String url){) L5 N( |" j: X; Z2 H5 N
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 J7 T0 x) w9 G% H: o E - HTTPClient http;! }# R6 c& C; h& P
- Serial.println("[HTTP] begin...");
; W2 ^% v+ `. l* t* p# | - if (url.startsWith("https")) {
! I7 Z$ n$ E# c0 N% J6 ~ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 k8 e: P; G9 w) M' U& Q: V2 Y
- } else {
$ c/ `- D* H) w. ]$ g - http.begin(url);; {! X. b. q/ V% |
- }6 O8 E/ S" o9 X: o! m, B: |# g
- Serial.println("[HTTP] GET...");
( [ p2 j" z2 ^% G' w. G6 x' c - int httpCode = http.GET();
$ M* _: O5 `. F! g; S; { - if (httpCode > 0) {
i; p5 ~% ]/ D: s- X" e2 o - Serial.printf("[HTTP] code: %d\n", httpCode);/ t/ z: ^& U) O' D" U# ~! F
- if (httpCode == HTTP_CODE_OK) {
. }5 V6 Q% B! _* c& l* m - String payload = http.getString();
7 h" r. d* E- [4 u { - Serial.println(payload);
8 L: j7 U0 X+ L) p - Serial.print("\r\n");" D P, e v, _3 V! B. n1 k6 _
- return payload;6 C: ^ g2 d/ o* c
- }
# `! ]& V- U, P# ]0 m; f S - } else {$ z' G& @ a6 T: @. a& t4 F% ~/ a
- Serial.printf("[HTTP] GET... failed, error: %s\n",% f8 v; ]* Y! R3 j
- http.errorToString(httpCode).c_str());
7 n. |. X7 Q& j4 N - }* k% Z9 H7 ~0 J! n Q! }
- http.end();
, E6 n7 {% S- I' m+ F$ Q - return "";( @( a1 U9 J5 J% S7 r8 v6 F0 M# k- H
- }" D$ ?: {( @/ U
- }7 B* v( D' K0 y, c4 I5 A$ v5 M
- void mainAction() {
?) d) z$ H7 `* X; Y - // 发送请求7 M+ v$ s# R* ?4 y. d6 g. e
- doGet("http://google.cn");# f) N( X$ H. S0 _7 n' _( X
- }
* N, x9 b w# U, D
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