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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)
5 q% e5 r2 U4 w9 U- #include <ESP8266HTTPClient.h>
8 X. e9 }, A- |2 E- L' e3 @8 L - #include <ESP8266WiFi.h>
# O! v; v2 i: {. U - #include <ESP8266WiFiMulti.h>" Q$ G0 u5 O* ^9 e/ Y8 r& u; W5 [
- #include <ESP8266WebServer.h>1 [1 A) F* B' Y& X9 I. @; i' l* ]3 G* w
- #include <arduino.h>
, ]" X( z$ ]6 f5 S6 p - ESP8266WiFiMulti WiFiMulti;; z; J% F- b: A! M3 K& u
- ESP8266WebServer server(80);6 c1 D' i& x7 V# F( Q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ w3 T+ s; p3 g3 w - ADC_MODE(ADC_VCC);
1 h% p& ~5 k7 C8 g% F V2 u - void setup() {) l' k$ y& R1 ]$ }/ o2 a
- Serial.begin(115200);
- S- z3 Q8 | L% c3 J1 u* |6 M2 c - Serial.print("\r\n\n");3 S7 J: l) Q1 U! m3 Q Z4 T& Q
- pinMode(2,OUTPUT);
2 _' p; _: f9 W$ c# w0 g# n - // WIFI5 r# A& ~' x! i, ]" W
- WiFi.mode(WIFI_STA);
; A) B; ~& S1 O+ S! u8 s9 h - WiFi.hostname("Sparkle");
5 d! s+ ]/ \6 F5 X1 `4 ^- @- w - WiFiMulti.addAP("wifi ssid", "wifi password");5 o `: x8 W5 b" J+ {
- int tryNum = 15;
( Y7 l' d! Y/ p0 M$ i3 l7 f - Serial.print("Connect WiFi");
+ n4 K& W- {7 L - while (WiFiMulti.run() != WL_CONNECTED) {( R- J8 m3 ?* L2 U3 U
- digitalWrite(2,0);
7 |5 _$ n2 G$ C: G$ U1 a. ~ O - delay(200);
0 N) s2 a; A6 ]: y i1 H p - digitalWrite(2,1);. {% I. q! G+ |$ u: I! l8 m& l- T
- delay(300);+ z8 ?) i. r+ Q( {/ Q# M, v# l
- Serial.print(".");- ]% m; z% ~0 c
- tryNum--;5 ]0 F! y$ M4 h. A; ?+ x7 N
- if (tryNum == 0) {" F0 T8 x/ U; r" N
- // 1min( b) c0 e% l) R" |1 g2 U
- // ESP.deepSleep(60e6);3 b, h2 d* D* h: W) _2 V
- ESP.deepSleep(0);
* K8 K5 X: }) y7 S$ z - }& ?; m# G( U' O% C# x
- }
|, Y+ H4 H. h' @& r: l: @' Q7 n: a - Serial.print("\r\n");* T/ s" Y$ C) `4 U! x) S
- digitalWrite(2,1);
: R& K) F8 |. P5 c( c* S - Serial.print("IP address : ");
& q$ y4 z0 {5 F - Serial.println(WiFi.localIP());
3 P$ Y+ k+ b5 p3 i: r - server.on("/", HTTP_GET, [](){
. ^* |& w5 r+ v/ }9 [$ C* } - server.sendHeader("Connection", "close");
) V) I1 d# E7 Y6 f: Q - server.send(200, "text/html", serverIndex);
, \5 b$ U6 z& Y$ T8 Q) o9 x: h( M* H - });8 E/ L! R$ C0 {6 H
- server.on("/update", HTTP_POST, [](){
# h) B( ^6 C; w0 q - server.sendHeader("Connection", "close");
. T3 b$ v& T& |: B1 a- ~6 A - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. V" I+ K+ E4 o
- ESP.restart();
6 Z+ ~! d# f% F - },[](){
% l4 Z9 u3 J% B) F3 V - HTTPUpload& upload = server.upload();
* s5 G& N/ c3 f# g - if(upload.status == UPLOAD_FILE_START){
* z+ s2 ~( {1 h9 d - Serial.setDebugOutput(true);
9 B4 Y, Z( G% F - Serial.printf("Update: %s\n", upload.filename.c_str());
1 ^! ]4 ~' z# K - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* F/ x6 Y; v) v7 F( ~ z - if(!Update.begin(maxSketchSpace)){
& O8 l; G% ?/ ~9 s7 y - Update.printError(Serial);
. f3 a, a# R' [$ ?- l3 k6 Y - }
& `) T, H4 Y" q/ ]9 l7 | - } else if(upload.status == UPLOAD_FILE_WRITE){
+ T! F8 m* W1 g) a - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' D( r5 P! g; N
- Update.printError(Serial);
1 j- X. |6 o, [6 F% n9 y - }
6 s" I' [" | Z& M3 H t - } else if(upload.status == UPLOAD_FILE_END){
5 W* E; w5 n! N: R9 T" f4 T: l - if(Update.end(true)){$ R6 [; O( C1 s1 Q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% [! F6 E L, i: ? g" S - } else {
$ `( f: h+ y% h: r/ G" ]. i - Update.printError(Serial);
! e6 W2 [1 }/ W% G# b9 V# p - }
3 _# i t( b9 ~4 b, _ - Serial.setDebugOutput(false);
, V( h- H! J) H" X8 g7 f - }& N8 |+ m7 ~( q: {: U/ Z2 G6 C3 o |
- yield();3 O, L) t# i* \6 d j+ N3 D
- });' k0 T; Y" H$ ]( M4 g4 {% Y
-
5 z6 @. b" Y# ?! G/ ^ N - digitalWrite(2,0);5 a% V0 ^" z) w* a; v# D
- mainAction();
' G! F" ]4 h& d W, o! P$ z - if (digitalRead(0)){$ L& l+ f- }7 _5 ~& R
- ESP.deepSleep(0);
) c6 F2 R. `! O3 R! ~- H" L3 Q - } else {
& Q& T9 V7 L; l* ?' Z Z( S - server.begin();2 C. T' _3 K$ O; G# S
- }* e0 |& r/ A$ j
- }% m) g S0 J7 W& }6 V2 ~
- void loop() {! a" m6 y- F; M& {
- server.handleClient();
Z+ A3 M. b2 ]. w0 F; l - delay(1);6 j/ y- Y5 E* E9 }3 V
- }
$ r; {% e- I6 T - String doGet(String url){1 E, R( t# v6 L
- if ((WiFiMulti.run() == WL_CONNECTED)) {
: \& ]! x0 g6 z - HTTPClient http;5 x ]2 @* g) e# R. c) P" m
- Serial.println("[HTTP] begin...");2 J9 \+ K$ q9 r+ d% }
- if (url.startsWith("https")) {) H9 @+ m9 }6 ^, a$ M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 _4 L3 Y; y9 i1 s( B9 | - } else {4 h0 O; ]+ I* J0 d$ B
- http.begin(url); s! |# P/ e. C) c7 a6 n
- }
- l' K3 R! e; A1 Z - Serial.println("[HTTP] GET...");
# Q% @/ E: T( E2 E - int httpCode = http.GET();
8 B! }9 ^7 o2 ~ - if (httpCode > 0) {
5 g' ^7 j0 \6 U6 A; X9 {" k E3 v - Serial.printf("[HTTP] code: %d\n", httpCode);
( e; _, `* `" Y2 O, w$ I5 ]5 J$ o - if (httpCode == HTTP_CODE_OK) {! V1 e8 S" d$ d
- String payload = http.getString();% ?4 x& R5 _# z1 n; M
- Serial.println(payload);% H' o! v; ^ t7 q' ?
- Serial.print("\r\n");
! c9 W$ A9 X0 L# v. }7 K - return payload;
- d& a+ w2 Y3 x; e3 O - }3 P) M/ o# L; Z7 d, H7 |
- } else {
$ N4 E. d+ S" e5 D8 {* O - Serial.printf("[HTTP] GET... failed, error: %s\n",, j1 F0 j% i3 E/ M5 w: y, c
- http.errorToString(httpCode).c_str());
1 E/ Q/ V; F' C: k L. ?7 N - }9 v1 L* n8 q- F P6 r
- http.end();
" L1 i" T2 a- z7 p( B# Q+ @5 z" ?, Q4 { - return "";
+ u& _# O5 E) _/ z5 U* U ]% A - }
6 c9 ^- R) w' E+ R - }9 [% A- |4 a3 O& r- a
- void mainAction() {
( J/ c$ g3 H2 F1 j8 q# Q/ _ - // 发送请求% |5 ]8 d7 b& w, t7 Q, k5 v
- doGet("http://google.cn");
0 U4 Q1 U, Z7 C# V, [ - }
# n$ K- Z0 M1 k9 C
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