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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)
' R: q! \3 U* ~( n8 _- #include <ESP8266HTTPClient.h>. X9 R& x6 R; d
- #include <ESP8266WiFi.h>1 R+ J+ {* I9 O# N, P
- #include <ESP8266WiFiMulti.h>& i# d( ]* n5 V, P$ ?/ x' ]
- #include <ESP8266WebServer.h>: u3 f' F8 T0 x7 [
- #include <arduino.h>6 p5 ]$ A- p2 o, h0 D
- ESP8266WiFiMulti WiFiMulti;
$ z) p+ S4 w- Z6 V: M - ESP8266WebServer server(80);
- K! ~" D( X$ V/ v$ Q' e; m1 m5 X) { - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% i k2 n' b. V3 x, t - ADC_MODE(ADC_VCC);) \9 M. m, z; e* A
- void setup() {8 J, I* k3 D% h! f! ?
- Serial.begin(115200);! k8 l( g( }# u7 B& I
- Serial.print("\r\n\n");
, Q+ E; y3 h: N4 E! K" I( r - pinMode(2,OUTPUT);1 ` j' o& Q' d: i( `# v
- // WIFI
& T5 Q* O1 @, y3 } - WiFi.mode(WIFI_STA);. D% z9 E/ m' }- H& ^( ^- l, @
- WiFi.hostname("Sparkle");
5 {0 Y/ V- W5 p4 s& `) A, | - WiFiMulti.addAP("wifi ssid", "wifi password");/ n) v2 S5 K2 o) S4 m' F5 k$ N" i
- int tryNum = 15;
) i) o8 z! v) n; L/ M. C4 F - Serial.print("Connect WiFi");
. w8 G! B# f* o$ N2 s# ~% X4 V - while (WiFiMulti.run() != WL_CONNECTED) {
; c- H x, V5 f, l - digitalWrite(2,0);% r6 w: z# T/ ^
- delay(200);
, U/ A2 e& Z/ n0 s - digitalWrite(2,1);
8 o+ m2 g2 n/ b/ W/ M1 P - delay(300);
5 h+ g2 [& B( I( [3 L+ z; i9 N - Serial.print(".");: ?2 e; B q, V
- tryNum--;
( z# r ]* ^/ e, l& l( n2 k$ z+ ~% { - if (tryNum == 0) {3 w' B/ l8 d0 c8 ?+ Y" c4 y
- // 1min
" h$ u* z$ w7 e2 Y' } ?. b6 Q - // ESP.deepSleep(60e6);
: z- H5 _9 n G - ESP.deepSleep(0);; D. }3 g( m9 ~' h
- }( F0 K! ^1 ~: q8 D/ C l! n) p3 @+ G
- }
& _( o0 }1 [- `0 a `$ s9 f - Serial.print("\r\n");
! A) E/ E7 K" t! J2 i3 g2 p - digitalWrite(2,1);
$ S( Z6 O2 q- I7 y5 i - Serial.print("IP address : ");, ^; {* e9 r0 s
- Serial.println(WiFi.localIP());+ }' g/ H5 |5 l) y! q1 w- a4 X
- server.on("/", HTTP_GET, [](){5 O, T5 @. j9 n* M
- server.sendHeader("Connection", "close");/ e1 m% `0 V+ r% M* H) X
- server.send(200, "text/html", serverIndex);' l0 n" w& i. _# B8 j1 }- [# m
- });
/ N; D. \/ `' N9 |0 H - server.on("/update", HTTP_POST, [](){
9 h& Y( v6 b8 l. D# e8 B - server.sendHeader("Connection", "close");8 t' ]- Q% W5 o s3 [1 T: J
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 l* [1 V/ S+ t% z/ n0 N/ W3 j
- ESP.restart();
7 \5 {: ]# A, o& Y: W3 N8 B3 q - },[](){! W, R! C) w# v, k$ \
- HTTPUpload& upload = server.upload();
% L4 ?' L+ `0 E - if(upload.status == UPLOAD_FILE_START){
7 `2 a) i; m3 G# E - Serial.setDebugOutput(true);
; b( M# z* j- y - Serial.printf("Update: %s\n", upload.filename.c_str());9 ~* u: ^: I) h# l) {8 [
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ a+ u4 K& K3 W: c7 k' D - if(!Update.begin(maxSketchSpace)){
; t9 B- \5 l& x( s3 W6 t - Update.printError(Serial);) J* z4 y& E w$ K) s( L7 Y
- }
- m$ |8 i6 l9 ?! P( s6 }; m - } else if(upload.status == UPLOAD_FILE_WRITE){
& L$ G0 K" Z$ F' ^& g6 d0 m2 q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 K. E3 x0 a3 ]2 |; w: H - Update.printError(Serial);
! J1 c: O9 D5 }3 A) l- ~ - }6 J9 T ?/ L5 C0 Q3 S% Z
- } else if(upload.status == UPLOAD_FILE_END){
8 d" Z" A0 C l5 T - if(Update.end(true)){& O. V9 T E Z) P: i
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: h$ N) Z* B+ }5 `- {6 h
- } else {. w# X& X0 I" V/ q' _9 a
- Update.printError(Serial);
- e8 a0 @0 l' N0 h - }
, g- f8 j( l4 n0 S - Serial.setDebugOutput(false);
* Q7 ]: O) {4 R/ i - }2 m8 g2 p5 _' r/ S9 J4 y% ]# v
- yield();/ t+ s4 ^3 I4 A* B" m7 m* d
- });: w: ~* b6 U: g; g! U6 y
-
4 Q4 S' \# o( s7 g8 A$ d - digitalWrite(2,0);3 i/ }5 X: u2 v; ^
- mainAction();
: F1 j6 D" A9 a* r7 V: O - if (digitalRead(0)){
- L' w9 ?, C$ B) N, a - ESP.deepSleep(0);
5 G, L# c' v6 O' C - } else {
3 ?/ ?& L4 Z3 Z- s4 \. T - server.begin();8 ]3 t# @- {& X/ r, D, a! G% \
- }
n7 C0 h8 i9 i - }& c O- r7 [$ {4 ~
- void loop() {& x, X" C6 ?: s* ]
- server.handleClient();
9 g7 {. V# v7 A# p& l+ D - delay(1);' h2 O3 j4 S& x) n6 d$ ^6 |/ k
- }
0 h2 L% k9 v( F2 L0 z - String doGet(String url){
) w; [0 u7 W6 \/ K+ r0 n- [9 i - if ((WiFiMulti.run() == WL_CONNECTED)) {7 P# j5 |. u' d& g1 z7 X
- HTTPClient http;
' x/ F3 Q9 \4 |- \6 p0 d5 {/ p - Serial.println("[HTTP] begin...");
2 L- n: Z. F! X! z - if (url.startsWith("https")) {
+ {" a$ z3 ?8 A3 L( Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; |. S! }1 R; A ]
- } else {5 A/ Q+ @$ i% L8 [
- http.begin(url);" C" J4 z6 ^' |0 a+ ]& G
- }
4 O: i1 K8 v0 F' t j7 ?7 ~6 x - Serial.println("[HTTP] GET...");
8 k4 [5 V6 u- Z) r* Y - int httpCode = http.GET(); \: O9 k* ~$ X
- if (httpCode > 0) {# W" S) w* i7 \7 o3 H# @* l
- Serial.printf("[HTTP] code: %d\n", httpCode);
3 i3 [; V% N9 f8 M o1 e - if (httpCode == HTTP_CODE_OK) {
1 f" Q1 c N: R" H1 U( X - String payload = http.getString();
5 _, M: L0 d$ M9 B& [- [2 \ - Serial.println(payload);
! q7 Q7 y9 f# m( L1 X, [' ` - Serial.print("\r\n");( g$ @2 U& ^6 a2 L8 q
- return payload;
. _( T0 J( B6 o/ }1 ]- a; [. l - }
: V- q- @5 u3 k3 Y# } - } else {
- d( h8 F9 O% p. I - Serial.printf("[HTTP] GET... failed, error: %s\n",
: _ a: E3 w9 j - http.errorToString(httpCode).c_str());' c8 h. U2 n$ P# c4 q. N" E3 I, _4 {
- }# c; w" E1 j' M: m
- http.end();
2 @+ Y7 k' T7 G9 j, h - return "";6 ? _. {* e4 ^( J
- }
: z9 S( U) q' a& T5 [/ i - }( f% h7 t: w" L! H0 T# Q+ [
- void mainAction() {- E2 x% U4 L8 B$ j
- // 发送请求
2 W3 l+ n" {9 E& e1 U - doGet("http://google.cn");2 s* C' g p Q, ]
- }3 X5 W# S! l' J% n
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