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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)
7 R5 }9 X+ x5 h ^9 g. h- #include <ESP8266HTTPClient.h>2 S" y% _: l3 w4 ?& O/ h
- #include <ESP8266WiFi.h>
7 G" k! O4 c6 b& C7 U - #include <ESP8266WiFiMulti.h>, I, X% J' Q) P7 B4 J2 F
- #include <ESP8266WebServer.h>
y p9 ^7 b# I - #include <arduino.h>3 x' @% M% R! i3 z( k7 k
- ESP8266WiFiMulti WiFiMulti;$ p. j5 r" q0 E j, Y" w) g. x
- ESP8266WebServer server(80);
% a. p- n' G* a6 `( V - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. _& J- S% ]- f4 F
- ADC_MODE(ADC_VCC);
- K6 o- p+ d0 o y5 _ U* B4 X - void setup() {
; e0 d& n* c6 X& z. Q: W1 P: d - Serial.begin(115200);
5 L9 R/ o" z" b - Serial.print("\r\n\n");* f% j% K# w2 y3 X S
- pinMode(2,OUTPUT);, P# Y% J0 e, ~: c! [
- // WIFI
: n0 Z/ y0 [$ A |0 \ - WiFi.mode(WIFI_STA);1 W" B" Y$ J. X. l( W
- WiFi.hostname("Sparkle");
6 _; d2 p$ z O/ Y; A - WiFiMulti.addAP("wifi ssid", "wifi password");
% ?; \/ I: y. H0 ?9 ?# x) ` - int tryNum = 15;2 v$ E; e4 _( p; K1 B
- Serial.print("Connect WiFi");
7 R' v8 ]3 O$ B, C2 q5 E! \ - while (WiFiMulti.run() != WL_CONNECTED) {, r9 _$ L0 S0 V# i0 r$ c: T5 R3 ?# j
- digitalWrite(2,0);
4 R1 W9 H' m0 }1 d! G# A - delay(200);8 U2 d, C$ d) p
- digitalWrite(2,1);& Z+ J3 Z* R" G4 g* z+ n
- delay(300);' h7 b) X! ~; D0 t0 o0 X
- Serial.print(".");
$ g4 E0 M- g! L6 c- z - tryNum--;0 c7 g/ [& a8 z
- if (tryNum == 0) {
% t. @, D4 [. i8 P% j# a8 L - // 1min
% r: c8 j4 ~8 s f - // ESP.deepSleep(60e6);
% g `4 U7 h1 W8 t4 a+ e' ^: j9 z - ESP.deepSleep(0);
8 {: h" e% I/ | X - }, p" w; g! p' U; w% b
- }" M8 Y1 Z9 _/ u2 i2 {+ I! s9 z! U
- Serial.print("\r\n");
. N8 D$ T# {) E( v/ J% O1 a - digitalWrite(2,1);
( z; i$ C) q" ^( ] - Serial.print("IP address : ");
0 `; |& _% {4 Z: F5 j! p) t% ?9 M - Serial.println(WiFi.localIP());
( [5 w* [7 X0 L* I1 L! ~( ~: l - server.on("/", HTTP_GET, [](){
3 q* ^8 L: y( W% t' D$ E - server.sendHeader("Connection", "close");
! m# }& C4 ^4 z$ T. n - server.send(200, "text/html", serverIndex);7 m7 y; s* n" y, W1 M3 O J
- });
3 X6 x0 O5 T. v* E. i- y+ q - server.on("/update", HTTP_POST, [](){0 v3 b$ S4 W$ Y+ \- m: x
- server.sendHeader("Connection", "close");; _- u, z, T; U2 Z6 l
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");& w8 `; |" p* W% L9 m
- ESP.restart();8 F8 E* y4 [0 j1 E: I
- },[](){
. w. w+ M" O% Q4 W6 M- e - HTTPUpload& upload = server.upload();
6 E6 M8 m# Z" r8 x - if(upload.status == UPLOAD_FILE_START){
M! q$ x; A! N* L - Serial.setDebugOutput(true);
) q( [+ Z& ^. n% J - Serial.printf("Update: %s\n", upload.filename.c_str());
; e. g' u/ M/ R. h V* X, e - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" D. `! h, M( G - if(!Update.begin(maxSketchSpace)){
- R% h9 U- `" i' F - Update.printError(Serial);
! G# `5 h# w1 l/ p - }
: c; l& O8 W. U2 ^' Y - } else if(upload.status == UPLOAD_FILE_WRITE){
- z+ I+ P9 G/ {( u6 g+ d8 L - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 G+ x* @- k, G* S% h9 |5 h0 I - Update.printError(Serial);
: J+ I. U. M$ w0 j( J! h" O - }
+ H! M) [3 z! I - } else if(upload.status == UPLOAD_FILE_END){, p! N# J% k# T1 o8 |) K9 x8 |. T
- if(Update.end(true)){
$ ]3 n8 L& d6 W7 f - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, u/ R, d$ g+ w
- } else {
) w, o5 k8 d. t- C - Update.printError(Serial);; ^! h p$ ?. z
- }
$ Q2 X# C" ?: D6 b$ ^- D - Serial.setDebugOutput(false);1 x3 s( Q: g% L0 y% u! p8 I# [
- }
$ c- }8 w! Q0 z- k9 a. A2 Y, T - yield();
9 J. _- l$ `$ ?4 H+ y7 j8 n - });- l. A; q3 P1 F/ J0 i3 Y N
-
; l9 `' e& V4 U( Y1 R" _: A( _, J - digitalWrite(2,0);
, i3 I9 E# K4 ~. [+ K - mainAction();7 E1 D$ d: ^0 E
- if (digitalRead(0)){" G9 Y8 r3 @1 k6 m/ G6 n8 K% I
- ESP.deepSleep(0);9 h% j6 e1 ~* j" {5 B
- } else {
) U( I( |/ n1 R6 @, }, x$ r - server.begin();
' O9 ]2 R K% b1 W. Q0 p: P' T - }; i. Q4 l; D+ Y- l% @/ w
- }
# V" U+ R4 x, v- F - void loop() {
" i5 W( I: P( V/ V$ u: R1 t - server.handleClient();3 p$ p1 f0 A8 A7 F9 F# k2 p
- delay(1);
- B/ q0 P5 ~$ d - }
8 e/ [, }( a3 ?, z: j6 c9 g - String doGet(String url){: F- J% Z$ U% X! Z8 B# ]/ q
- if ((WiFiMulti.run() == WL_CONNECTED)) {( ^* k0 H# T: O
- HTTPClient http;
; Q& L1 B7 A3 B5 w6 y: { - Serial.println("[HTTP] begin...");
* B# P7 [) @* O - if (url.startsWith("https")) {
* Y% j* W( q1 f' f - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
( t, h' h3 s; {3 F0 P - } else {
5 A9 n, @) ^6 h2 M F - http.begin(url);
' k) V4 S$ i0 |% C0 m+ w3 R - }
4 ?5 N; n( `& M" N( j - Serial.println("[HTTP] GET...");
. K1 {$ t9 G: {- Y - int httpCode = http.GET();4 J4 s) X4 Y1 q# b# ?( _, T% ~2 H
- if (httpCode > 0) {
8 o1 ?: ]9 X, t& i+ R2 e - Serial.printf("[HTTP] code: %d\n", httpCode);
( g! }4 J8 n3 F' q7 e - if (httpCode == HTTP_CODE_OK) {
+ l& B) r- X1 L - String payload = http.getString();$ N* C2 H- X, T9 ^1 V
- Serial.println(payload);& ^: j& Z1 T% Z& Z- W
- Serial.print("\r\n");$ c6 N& F/ K) {6 I* h! @) }% a
- return payload;3 _# S5 |6 {+ j
- }4 P7 e$ c# K$ F) v4 w0 b4 X# V
- } else {6 O, }4 I1 t, D, V! I7 |
- Serial.printf("[HTTP] GET... failed, error: %s\n",& C' J3 S. b' I8 G: i8 ]! V, O
- http.errorToString(httpCode).c_str());: n% K% a$ m5 A" t& W
- }
5 Y, @& D" x) p1 Y& _/ i - http.end();
$ c- K: X2 L& e6 f* j" l! d# x - return "";
8 L3 H: P& c1 o+ p/ v+ D - }
" |# `' l d8 M0 Z7 z8 [" ^ - }' w2 h# {: l$ |$ \6 b- E( |- O
- void mainAction() {
3 S- c3 l; ~% f! m9 w6 b - // 发送请求
9 k& x- n9 _# {3 @, Q% N2 ], t - doGet("http://google.cn");
5 I7 z" m3 j6 I/ F - }; c3 v7 P& w3 K0 p/ m
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