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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)
2 ~; N3 U. H& |6 q, Q- #include <ESP8266HTTPClient.h>1 Q' s( o' c u
- #include <ESP8266WiFi.h>
8 e. s# o) B5 S1 P, a - #include <ESP8266WiFiMulti.h>
6 U& y3 l2 E( ] - #include <ESP8266WebServer.h>9 s, N) R- x& x8 i8 M
- #include <arduino.h>
3 q4 z/ r- u7 l) @- k% j - ESP8266WiFiMulti WiFiMulti;: \% k: V$ B) P& H
- ESP8266WebServer server(80);
& v5 q {; U/ J$ D z7 J - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 p/ z% i! `9 @* j" l5 V
- ADC_MODE(ADC_VCC);7 q1 c2 w7 s1 V0 ^$ O5 Q0 Q% `
- void setup() {
* T4 V5 D+ X. Q% ^ { - Serial.begin(115200);, d8 j' M1 k: T4 V% m
- Serial.print("\r\n\n");
0 u$ ^* Q9 p7 @9 X4 k: Z# b0 Q0 R - pinMode(2,OUTPUT);7 F# V9 s+ J8 @1 z" l
- // WIFI& x* D" R9 \( O/ {2 E2 |
- WiFi.mode(WIFI_STA);
3 ?) o. j6 _$ i* E" d3 F - WiFi.hostname("Sparkle");* X: q5 r# Z; l1 |9 L T
- WiFiMulti.addAP("wifi ssid", "wifi password");+ R! |6 t9 K5 K8 A( Q2 m4 `; Y+ F
- int tryNum = 15;( l3 \# U3 {& d( w K& W
- Serial.print("Connect WiFi");
R5 q" r* t6 p. U/ @3 n/ r+ y - while (WiFiMulti.run() != WL_CONNECTED) {
5 w& Z- O! W2 K* D - digitalWrite(2,0);- U4 G3 W) e! l+ k3 P" C
- delay(200);9 f+ w, y! ~2 ^: [
- digitalWrite(2,1);
8 [. g/ g; T5 m1 U7 i0 w - delay(300);
; }. Y' @& d; a1 T8 z' b2 |- }, x - Serial.print(".");
C! y' `( q) A# `1 l8 p - tryNum--;) z1 Q1 B+ [$ o4 ~2 l. @
- if (tryNum == 0) {
. |1 x x% U7 w, B# c - // 1min$ s1 q8 [* z( i5 s) _
- // ESP.deepSleep(60e6);
9 [' W8 R6 H' F! z% @* X - ESP.deepSleep(0);
( `. v; s4 X$ F& V; Z - }
7 I$ l& ~7 M, u ? - }
$ U: H# q/ v1 u- F) U& }! F" l* P - Serial.print("\r\n");
7 h. z3 f! u0 y) S, b; K - digitalWrite(2,1);" E+ b' r {3 x' P/ Y
- Serial.print("IP address : ");- n* A; b, b# z
- Serial.println(WiFi.localIP());( @9 E, Y9 f- z# x, S+ c
- server.on("/", HTTP_GET, [](){# t2 I4 K6 O Z. h- ?9 ? V" O
- server.sendHeader("Connection", "close");
3 r* v# O( u6 D: a+ T3 ?3 c- E' l8 W - server.send(200, "text/html", serverIndex);
3 N+ a3 p- R9 _0 w: G. E8 P$ [/ R% F - });
' l7 a8 g$ _: x8 Q# S4 ]! P$ A - server.on("/update", HTTP_POST, [](){
) N) t# V% A, k- X* f - server.sendHeader("Connection", "close");
9 Q6 a {- b" b2 s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");/ ^/ c* r0 y$ Q0 P+ v
- ESP.restart();& d o: P- p$ k
- },[](){
. w7 [! Z1 k" x, A! o$ O* d - HTTPUpload& upload = server.upload();
0 K& L9 S2 R, z& y6 Q& F- K1 i - if(upload.status == UPLOAD_FILE_START){( q% H8 b7 M* k/ m& I9 p( p
- Serial.setDebugOutput(true);
& s# t t3 j2 R: D5 J; m - Serial.printf("Update: %s\n", upload.filename.c_str());
, O! y% a( `0 L& w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- p1 i: ~) p7 p: ^4 N - if(!Update.begin(maxSketchSpace)){) z8 ?' {. h, d7 Y S
- Update.printError(Serial);
0 _/ b2 Q! S- ?( [ F! ~* p; @ - }
9 E4 d0 o4 a( G' T3 T) ^ - } else if(upload.status == UPLOAD_FILE_WRITE){1 ?2 a& z7 Z: A; t# \4 z$ m3 R
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 f/ ~% d1 k( W$ s
- Update.printError(Serial);
3 W* D# d3 u, p9 p7 Z% w) y2 q5 P2 y - }
, N# K R7 f' B - } else if(upload.status == UPLOAD_FILE_END){' V9 Q: [9 n3 k: {- A, ]+ F9 G
- if(Update.end(true)){
3 i- v0 h, P" Q- J3 j - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 z9 b& {* H* f; I+ ~ - } else {( l d- i% G/ _4 S$ ]$ e7 m
- Update.printError(Serial);2 I# L2 D, z3 o3 ~6 _
- }
9 B) }3 l# `3 R& `6 l" d - Serial.setDebugOutput(false);. M! |+ |8 _2 C* {3 |
- }
& r) V4 L# K: C- ?) B - yield();
8 f; z& u& u* L - });+ o5 n$ R$ K- h% U) `
-
/ E: Z1 k4 Y, j4 A. ~; n7 i$ }. b. `1 F - digitalWrite(2,0);
$ H% H; R7 l! x* a# q1 E - mainAction();
: U; ]0 E& m1 ~/ l - if (digitalRead(0)){
3 a2 k; T1 C4 @# v3 f% x* K - ESP.deepSleep(0);) Z1 o4 ]: g1 J
- } else {$ [1 P; K' B m' I
- server.begin();9 @$ i7 `6 i# V+ o
- }
2 `: @" x, L8 [: l' H - }; q. x8 z. N4 i/ b# B/ O
- void loop() {
5 r1 O% i) @" @: @1 A3 T4 B7 @! Q, Y - server.handleClient();3 U* M2 g9 b" f, g
- delay(1);" I6 s/ c, f8 `" p
- }0 b7 K" k* Q- }# ?: d7 C' s" D6 N" M
- String doGet(String url){9 S$ ~/ a# z5 n/ k2 r" ^1 l
- if ((WiFiMulti.run() == WL_CONNECTED)) {
% r) T+ ^: x1 y4 {) A9 n3 Z1 v - HTTPClient http;
7 c7 H- n b0 D - Serial.println("[HTTP] begin...");
7 M& U' x" t/ e9 H& F - if (url.startsWith("https")) {
0 m. q7 K: I) {; x7 u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, U: K r- E/ f4 r - } else {8 |0 v, I& I; i, P8 E
- http.begin(url);
6 V$ ]; F, _- \ - }! x$ M3 H( ?/ Q3 ~& }$ ~
- Serial.println("[HTTP] GET...");# R" B: y: P- H5 S7 H d
- int httpCode = http.GET();
8 K) K' p4 l. c8 T: Q' a - if (httpCode > 0) {5 l( I6 l) w' @/ d: U$ r# n G4 ?
- Serial.printf("[HTTP] code: %d\n", httpCode);
, i( ]6 _0 P( n - if (httpCode == HTTP_CODE_OK) {
" i: n5 b' q. C - String payload = http.getString();
! K1 q) W$ y, D- ]0 J& W - Serial.println(payload);/ D7 x) A1 f0 k; B! Y4 V2 X
- Serial.print("\r\n");
+ j: ~8 C( \" G4 b: J# c - return payload;
w8 f% r! i8 j7 k; k( Y+ J' J - }
0 @& F( A7 G' O. N3 U8 o9 q - } else {
4 q, l$ _2 f3 o# }5 ~0 d, `# `& U - Serial.printf("[HTTP] GET... failed, error: %s\n",: r3 g% N4 o, y/ q& s# m
- http.errorToString(httpCode).c_str());
" ?/ t8 S' Q, k& k b - }
# `: ]; H- }0 f" B0 G2 ? - http.end();: ^1 s7 k0 T9 l7 |. W/ ?. C
- return "";1 u7 h& u' y" z9 n [5 y
- }
& g( W t# N. m5 y4 H, x P2 h - }
2 K$ @6 T8 y9 t - void mainAction() {
+ \% {) \% o) O: @9 B - // 发送请求, S9 B5 m4 Q4 w- \) ~4 I
- doGet("http://google.cn");) j+ Z+ z" }! s( o1 X! J8 i* [9 x( }
- }
3 d l* B& F* N! `
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