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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)
. z* }' |: |; |' m! t; A: i- #include <ESP8266HTTPClient.h>
8 G" `! Q7 E+ n' y5 F - #include <ESP8266WiFi.h>
; Q% \! L' C4 x8 u6 S; I - #include <ESP8266WiFiMulti.h>
* P" g/ T# \* R" Z - #include <ESP8266WebServer.h>
( G M; z0 j) H. B - #include <arduino.h>) x8 c9 b9 O% H* g( h* F9 w
- ESP8266WiFiMulti WiFiMulti;0 D0 @9 c3 P9 c( _
- ESP8266WebServer server(80);1 l/ ]# J' N6 z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, e2 v6 ]! v: {. z' F
- ADC_MODE(ADC_VCC);; r, q+ ?$ P+ d% U
- void setup() {
1 f5 S$ o3 @+ G4 T3 P7 ?5 B0 { - Serial.begin(115200);0 m7 N& A/ S* z8 {
- Serial.print("\r\n\n");
( e7 q3 q5 h# }) G - pinMode(2,OUTPUT);& |2 Z( G- e- F7 b6 j% c
- // WIFI
3 x6 y6 S% |: e/ I/ d- ? - WiFi.mode(WIFI_STA);8 i$ R2 ]9 L1 R: r
- WiFi.hostname("Sparkle");8 s! r0 u& J; s0 j! U
- WiFiMulti.addAP("wifi ssid", "wifi password");
# |( M1 }6 e& x. V3 [ - int tryNum = 15;5 l8 Z* e4 v# K8 f: C+ G
- Serial.print("Connect WiFi");( y" E' H, f3 O! Y! i# S4 s, @
- while (WiFiMulti.run() != WL_CONNECTED) {
( |4 z) J- r. J o6 K; n - digitalWrite(2,0);
7 z" t) B+ P. C: x8 m) a - delay(200);
5 s. C4 b% m* r9 k+ d - digitalWrite(2,1);
# ?0 B6 P. m5 ]; x& d* H( B - delay(300);
. p8 u$ t. f8 L C% a8 M - Serial.print(".");
& q! `$ g) Q5 R1 m; z - tryNum--;
* b1 {4 @, b' m" \ - if (tryNum == 0) {
! D4 C& Q6 \8 _3 V, R9 ~ - // 1min
0 t- ~& \( ^) e - // ESP.deepSleep(60e6);( E& Z, B3 X& ~( R
- ESP.deepSleep(0);
* ]( K0 N! p U3 j - }/ _7 N# j" z H* D0 u5 r, I
- }0 N- s4 ]% D/ P4 p3 F; } ]
- Serial.print("\r\n");
. q& ^1 B. q* P( o! N, m. \" i - digitalWrite(2,1);
' ?& n) ^/ w" d+ w - Serial.print("IP address : ");$ v3 H9 p, j2 s, Y6 `2 ~/ j4 P
- Serial.println(WiFi.localIP());' y3 g2 t! b/ `
- server.on("/", HTTP_GET, [](){
% }! k1 f# a- a: P5 H0 N - server.sendHeader("Connection", "close");
2 T s' t: U+ s* D$ f3 \ - server.send(200, "text/html", serverIndex);
3 F ^: E: q+ ~6 m% m- A - });6 `) p- W: A3 P& |
- server.on("/update", HTTP_POST, [](){8 l9 D4 M* u* |6 _4 \3 z' W' p
- server.sendHeader("Connection", "close");
$ I4 I, ~! ]3 U- t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' j; u9 w" V; T$ B" m. I6 J. p
- ESP.restart();
9 J/ X7 s9 ?' v/ h! X \ - },[](){, y& g/ J6 {; D' ?/ u" w( [
- HTTPUpload& upload = server.upload();+ R9 n& C' R1 m6 P
- if(upload.status == UPLOAD_FILE_START){# d5 P5 P- S' a# L0 F9 t
- Serial.setDebugOutput(true);/ j1 k: U& \' y3 ]2 y( [
- Serial.printf("Update: %s\n", upload.filename.c_str());
7 G& N: k6 ]) E8 O4 {* v8 |, @ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% s, b: _% S: o9 U! J, |
- if(!Update.begin(maxSketchSpace)){) T/ E6 d' e: f3 @1 {: C
- Update.printError(Serial);1 M& k' d3 t8 }. ^) B5 {
- }
4 ~# [- L- |/ E* F& p8 W, X9 r - } else if(upload.status == UPLOAD_FILE_WRITE){
, E, H7 `, ?' R% R - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- `0 @& h. N, ^
- Update.printError(Serial);- d( |! p2 c. H X# V7 E6 z
- }
$ r/ b4 Z" K, k8 F - } else if(upload.status == UPLOAD_FILE_END){* w8 {# q" g* j' |3 T
- if(Update.end(true)){! c) s# S [; i. c0 {2 b i$ g* H( ~3 N1 G
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);8 ^5 h: ^4 n9 S# E! h7 n/ i2 ^4 n
- } else {
: C+ S4 u1 R- S: V: K7 Q7 ]( [ - Update.printError(Serial);
1 p \' W1 X3 v" n+ p9 h - }6 G$ v( {2 Y9 s A- l- d: S* s
- Serial.setDebugOutput(false);
, C: c; o3 a( i1 u4 N - }
7 q; ?, O, r+ J0 A* _6 A1 f) \1 P - yield();5 F3 i5 P; A3 D& }- q
- });
' E" ? ^1 m) H2 b4 K% h0 U; g4 L6 V" \ - ' Y' y% ~" _4 y/ n# ?# V& {2 v
- digitalWrite(2,0);
8 s. l1 _# [0 d5 f. ` - mainAction();
0 \) k$ @( ?$ P# M: K: n1 ` - if (digitalRead(0)){! m$ w/ {$ j$ I- o( _; Y+ |
- ESP.deepSleep(0);% {8 ^% ~) {0 g+ x9 @/ N
- } else {+ i7 I1 [" T* g9 S8 b) S
- server.begin();
5 ^+ k7 {' ]# P# p, v - }
! |0 r! e) S. Z7 r2 e' K$ e. }$ x - }
1 D$ l6 m9 Y* t. y j2 i" x" n) F - void loop() {
# ~$ n8 i1 p7 q - server.handleClient();
2 s5 }* K/ T9 U - delay(1);
5 u. k( g' r7 Z$ y9 F) l - }
6 M# v; u/ V0 c: n# Z o - String doGet(String url){
9 q% }1 ^- u: G) I9 h1 C7 \ - if ((WiFiMulti.run() == WL_CONNECTED)) {. C8 z9 b/ r3 F) h' ^
- HTTPClient http;: q/ H1 H' o$ _2 p4 |/ |1 a' S0 J
- Serial.println("[HTTP] begin...");9 j9 M7 w1 T, ^
- if (url.startsWith("https")) {% I, g, Z2 y! s Z8 u4 k! l/ w
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# i( x7 J S0 i- d Y6 J - } else {
/ l' G: P, h) Y) C/ R9 T - http.begin(url);2 O- s! w9 T( T9 P( Q& l" U
- }
! X \ o; H* \# }8 { - Serial.println("[HTTP] GET...");
" U8 F0 @; m1 `5 b9 B: ~ - int httpCode = http.GET();2 w9 H; i- t% w& g) }
- if (httpCode > 0) {
& |! K/ w& [9 |8 O5 a8 K! F9 x - Serial.printf("[HTTP] code: %d\n", httpCode);
( H6 a/ K/ _& D5 Q, w - if (httpCode == HTTP_CODE_OK) {' l( q5 `7 x8 q
- String payload = http.getString();
) {% [4 j, J, D2 y' f+ y5 V! n- b' l - Serial.println(payload);0 Z0 O, Z, u; ^6 Q* v$ u; m# Q, A
- Serial.print("\r\n");+ ?3 s/ g+ H% R7 s& Z
- return payload;+ s" `& X. ]) ?( f$ c9 @
- }
# y7 r# \( n% |6 J - } else {: G) P: t* q% J- \; M5 n# y
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ K7 ~9 O1 R1 m) H
- http.errorToString(httpCode).c_str());5 W& e8 K- T& S0 Q" p. H
- }6 E# `, }; [: S
- http.end();
: {" o7 e- U- K9 E3 I0 `8 b5 {8 H - return "";6 w3 Z3 Y! \/ i* I1 ]9 n9 T
- }7 P: t) m/ d0 i r! b+ q. m
- }
! i) B" K5 `! D& G8 o, L+ s4 w6 R - void mainAction() {
2 z- l* r& ?; I" s' U - // 发送请求# o. I _6 `+ E8 E. z; B9 s0 ?
- doGet("http://google.cn");
, e% m4 T* E' Y. Y - }
0 k7 r6 ^3 L& v) ?
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