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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)+ u) S/ L1 o6 v8 F
- #include <ESP8266HTTPClient.h>8 {( @5 f* V' U0 [* Q* N; N6 E2 d
- #include <ESP8266WiFi.h>
3 ?8 V2 l, d e1 K! m - #include <ESP8266WiFiMulti.h>
7 g+ Q) A; o$ l4 I9 c- c - #include <ESP8266WebServer.h>! c' Q+ R" W" p$ v& }' B
- #include <arduino.h>
2 I7 X% Q6 S0 o5 P - ESP8266WiFiMulti WiFiMulti;8 k. E9 P3 W3 E5 R
- ESP8266WebServer server(80);2 h, k* D: {7 A" v
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 D$ n5 ~8 p6 M
- ADC_MODE(ADC_VCC);
, B) _3 M: T: L; r: @ - void setup() {
2 X/ A( T- p4 X. Z - Serial.begin(115200);9 b' `$ ~- l/ L4 i( {' t
- Serial.print("\r\n\n");3 u& j9 L9 q' }0 ?$ m) ~
- pinMode(2,OUTPUT);, [, N8 P; Y/ [$ ?# n( ^
- // WIFI& ?( W9 S, p9 X1 V8 y/ K
- WiFi.mode(WIFI_STA);
3 Q8 s, `) E2 [, r' G" C9 K - WiFi.hostname("Sparkle");
2 h2 Y/ j$ z$ O5 e - WiFiMulti.addAP("wifi ssid", "wifi password");0 n8 ?: K( P: s9 P T% p
- int tryNum = 15;
! | A2 Y' H0 l - Serial.print("Connect WiFi");
$ I5 y/ Q6 S6 V' i { - while (WiFiMulti.run() != WL_CONNECTED) {
0 t- Y- ?# ?* Y4 Z - digitalWrite(2,0);: M9 N9 `8 Y+ m; k- ^( f' j
- delay(200);
5 Z* H0 C" r) ~ - digitalWrite(2,1);
% y) b9 d1 ^; ~, d4 G9 Q% R4 Y1 C& H8 p - delay(300);
" f1 i2 v8 e' ~0 O$ r8 @% a: K - Serial.print(".");
R' A) N. V8 ]. Y% ]/ m9 }" K$ x - tryNum--;
: ?* G3 @' h% H2 P* p/ H- N# W# Z - if (tryNum == 0) {# a1 h3 d, C5 w- x
- // 1min8 b* f# t+ L! U! f5 l* r$ H! u& p
- // ESP.deepSleep(60e6);
/ } u' q1 G6 A* {9 V- e - ESP.deepSleep(0);
* F& s$ J' B; i. E - }
. D& ?( Z; J* z - }+ X. U9 h W+ j* L
- Serial.print("\r\n");0 s! T4 o* R* ~# v7 H+ P7 m4 N
- digitalWrite(2,1);+ B+ |5 g; ]: l
- Serial.print("IP address : ");8 z; [$ F- y n0 K$ \
- Serial.println(WiFi.localIP());
3 |: J6 V5 c2 |, ~ - server.on("/", HTTP_GET, [](){$ S; H- e1 K) G$ J" d- e
- server.sendHeader("Connection", "close");
: W0 [6 [& C8 m# {- o. `8 u - server.send(200, "text/html", serverIndex);1 D) R; c0 m. ^
- });
! L+ q" a* ?( p( q/ o - server.on("/update", HTTP_POST, [](){. x7 |: h- B5 a& }8 }
- server.sendHeader("Connection", "close");7 f8 q: R5 P+ p0 e8 Y! M/ z: q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# P* |" L }6 C8 U7 A* d* [6 V
- ESP.restart();
: m: l' y! ~$ ^0 L - },[](){
; a5 s4 A- {- k6 n; B5 C G - HTTPUpload& upload = server.upload();
, p( s0 \. N' l! L" T! e1 k+ n: c; l - if(upload.status == UPLOAD_FILE_START){8 f0 \% _% |2 I3 B! n
- Serial.setDebugOutput(true);3 u @ b" z$ V' k) V$ z1 k* g
- Serial.printf("Update: %s\n", upload.filename.c_str());
$ t4 U) u( l3 V n8 J - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 k) k& A" p9 ]7 Y$ a$ T8 i
- if(!Update.begin(maxSketchSpace)){& F- v8 a6 E% F6 d7 y
- Update.printError(Serial);
8 `0 Q% |4 s) t7 L9 A/ }5 n3 v: f - }+ a, q2 h# }, o8 p
- } else if(upload.status == UPLOAD_FILE_WRITE){
! p. \% T) N K) v+ a - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){4 N" g3 g. v* U1 p
- Update.printError(Serial);0 W/ G, N, ^0 A7 i% f, H" t' S; H
- }% c7 R" z# T& u' n) H! Y, a: ^: N% q
- } else if(upload.status == UPLOAD_FILE_END){0 I* c. C4 z x; x6 ^7 l
- if(Update.end(true)){/ W0 E: R: T1 K, i- ~- x1 Q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# g2 L+ h7 t: D" P, W - } else {7 F; N# Z4 D+ S" l# e* C
- Update.printError(Serial);
$ j: r$ q8 Z/ _& l+ j# d - }
- K# R |; Q( x0 }+ Y - Serial.setDebugOutput(false);+ {& U/ l6 [" k& k/ _1 |
- }* z: o! J7 n4 U6 v& @
- yield();4 {- X0 Q; y% G9 q2 i
- });
' L1 C& e- y2 H$ J& U% L9 T% Q& U -
5 ?+ \: m( [7 U0 D0 b - digitalWrite(2,0);
# R$ } }# d" P+ p2 K. \ - mainAction();
0 E3 Q2 O9 H1 \7 i- v - if (digitalRead(0)){# U4 U& U7 w; K1 i
- ESP.deepSleep(0);, V) D- y$ A/ [; O2 F& `1 [
- } else {1 |* K a' Q7 V# s: z! e5 _( W3 }
- server.begin();
% p$ v" l" S7 w) M. i( m - } E- G& a' U8 r
- } V7 M) P6 }$ c
- void loop() {
" n3 U. g' X5 y( V) |% E# s8 G% S - server.handleClient();
7 v E/ @1 }2 n5 ] - delay(1);1 o' }1 [( ^+ O$ u# b
- }
8 v" ]' Q% q6 F4 w+ n - String doGet(String url){% @" i$ I- B) I& I7 V T0 f
- if ((WiFiMulti.run() == WL_CONNECTED)) {% j' a8 m ^1 S/ b
- HTTPClient http;4 `: K* P2 B% A, W: ~' f; {
- Serial.println("[HTTP] begin...");7 K# p$ [ D& L* B" x0 \
- if (url.startsWith("https")) {
- B" J" P$ L& y! {" O1 i' I - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 n; x6 [5 y G1 l
- } else {
) f4 d: P ^8 p8 U# E0 { - http.begin(url);* s, p- n2 @5 N: ~( d7 ?
- }
$ b. \& b+ @; a# [ X+ K - Serial.println("[HTTP] GET...");! M& H6 |( d& l
- int httpCode = http.GET();" T4 P; O, S. G* ?" ^
- if (httpCode > 0) {9 Y4 n6 W! @( i1 Q
- Serial.printf("[HTTP] code: %d\n", httpCode);
# k7 g) a/ y | - if (httpCode == HTTP_CODE_OK) {
1 a+ p+ W7 X* G; d - String payload = http.getString();. S, K" }2 R5 i2 a9 H8 E
- Serial.println(payload);
: y k# A9 X; s! n5 f" X4 ` - Serial.print("\r\n");
5 n& j' l: ]. J" s1 L - return payload;7 z; Y1 c! e o6 y* J5 [
- }
9 B( P" q1 ~/ ^( P! E8 { - } else {* v! \7 T8 d; j$ Y+ Z" C! ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ p# X6 g. A; ^7 j$ v7 N
- http.errorToString(httpCode).c_str());
% Z9 I' n1 B, f$ `/ I* `0 ? - }2 X$ Z5 p) A, n( V. g) `& d
- http.end();
/ a& q* s/ W. m' s- l - return "";, a$ [6 G I$ v, Y% E5 p
- }6 G* W5 Z. {$ c! V
- }
* X( V; m; k; m9 R0 t; ?* ^ - void mainAction() {: Z+ I0 a- n7 H
- // 发送请求
" V1 p3 |6 n$ y" S9 d - doGet("http://google.cn");8 X+ c1 ]; Z( H0 h5 v
- }! z+ F7 |7 F8 ^/ U
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