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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 n( Z; Q6 W6 V6 t9 b4 G7 ^+ u
- #include <ESP8266HTTPClient.h>
- z% C& Z4 Y8 ~3 [2 Z - #include <ESP8266WiFi.h>- ] [2 j0 k+ B" ?0 Z/ _* c5 M: @
- #include <ESP8266WiFiMulti.h>
" b, X7 @. H7 e - #include <ESP8266WebServer.h>* z9 r K" e9 A* X+ r8 y5 X
- #include <arduino.h>: e* ?6 _' M4 A5 }
- ESP8266WiFiMulti WiFiMulti;
; A% o: s/ ]: l( v! L0 n - ESP8266WebServer server(80);& o, J1 Z& P# U/ c, A0 `/ h
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) u9 n9 p/ P8 @' }
- ADC_MODE(ADC_VCC);
* @6 `& P4 _) k* _2 e( [/ s3 Y - void setup() {) E. d/ u5 T: I+ A0 Z
- Serial.begin(115200);
2 T# W' m& p" p$ M9 \9 w H0 Q - Serial.print("\r\n\n");2 l1 ~ I7 l2 g: T' |6 Q
- pinMode(2,OUTPUT);& ]: G0 r4 {( H" \! i! R8 _
- // WIFI2 ~. ~9 o" f8 P
- WiFi.mode(WIFI_STA);$ O$ b3 Y9 f" x) d
- WiFi.hostname("Sparkle");
7 K& x- F& a* t5 B - WiFiMulti.addAP("wifi ssid", "wifi password");
, Z8 B& H$ z# u! s' S - int tryNum = 15;
: q( i2 R* T3 ^5 n - Serial.print("Connect WiFi");" `: { |$ P* }6 m1 K1 p
- while (WiFiMulti.run() != WL_CONNECTED) {
$ q6 v6 r+ r* X( e; B - digitalWrite(2,0);4 K3 r# E1 i8 ?6 t# E' ~8 \8 d
- delay(200);- k( w6 K5 c5 U4 _7 p6 e' ]
- digitalWrite(2,1);
+ @- o! n0 _7 c2 t - delay(300);( p; c' c) ]: B
- Serial.print(".");/ r: ?9 w, j6 P% j/ I) ]
- tryNum--;( F2 J! d. A" j! p: \$ Q
- if (tryNum == 0) {
c; `% C& w) y5 E" Z - // 1min
2 w' R5 n1 J6 g+ G2 g - // ESP.deepSleep(60e6);
1 }4 Y' @0 e0 t6 ]( L - ESP.deepSleep(0);
: L9 R1 F7 M1 o5 V) F' j4 v - }
- i' p% c d! y7 Q" O - }- k p0 T' d$ y E: D7 N0 o0 [
- Serial.print("\r\n");8 ` S* i( [7 i8 _9 v
- digitalWrite(2,1);
' e+ x& r2 I5 o/ I7 M3 E - Serial.print("IP address : "); t f% @: ?. J2 V+ H$ ~' b
- Serial.println(WiFi.localIP());3 @6 ?. x& T9 s. {
- server.on("/", HTTP_GET, [](){. R% f/ o. D' _) g& t$ S
- server.sendHeader("Connection", "close");
# G6 B8 b7 C4 m/ q2 J: K - server.send(200, "text/html", serverIndex);. `0 l/ d9 |7 `1 T4 D% P
- });4 r- Y0 J7 D7 r9 i% d! l& C+ P
- server.on("/update", HTTP_POST, [](){
& k, k; ~1 E' T3 k - server.sendHeader("Connection", "close");
& x) h7 s. m, }$ G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 I( v# ]) k& X0 b' ]" w3 X - ESP.restart();
5 c8 Y4 ]5 L+ ^. y - },[](){" Y& m4 z! Z0 _6 \) b7 _4 s
- HTTPUpload& upload = server.upload();
& X" @8 N% ~1 U$ G - if(upload.status == UPLOAD_FILE_START){
3 X, M5 U! N" I+ W - Serial.setDebugOutput(true);
' U: ?8 k- O3 N+ C/ \+ P - Serial.printf("Update: %s\n", upload.filename.c_str());
8 b( z+ K E! f9 h* _3 n - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ c; h# Z: s! H; i, e/ P/ J+ c' ? - if(!Update.begin(maxSketchSpace)){& p c/ r! F# ?. S4 {$ m0 p7 W( {
- Update.printError(Serial);' {3 D2 F* l( J1 E
- }
2 e$ }3 g a: c! K& t - } else if(upload.status == UPLOAD_FILE_WRITE){
; \7 C5 H) X' e/ q6 i0 j - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. A& W) g q$ m, r- c/ E - Update.printError(Serial);
S4 p& v J* G' y - }8 m5 v; `% \) W
- } else if(upload.status == UPLOAD_FILE_END){ w0 g1 w# H; }6 K: [8 x
- if(Update.end(true)){
) b+ S$ B k7 |) z) J8 W0 a& I& j( ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 k: A/ t$ b% y
- } else {$ w: n7 K$ x7 e5 i& s, C! S. Q# O
- Update.printError(Serial);
. Q2 g7 H- t8 O Z& |( A V - }
' s* t2 m3 i( q7 V X0 X4 ?( u8 Z - Serial.setDebugOutput(false);2 y" J1 ~$ P. ?
- }
k4 J3 s( A1 F w$ w6 U - yield();7 z, p- l3 U6 O. Y% Q' c- r( n C
- });
. d+ N r' F- x* x5 }4 x% I$ n* H - & B0 }( [0 _+ d& `6 s. K# p
- digitalWrite(2,0);5 @$ |/ g/ H" c
- mainAction();% \! c1 h0 c, t6 Y. \/ L9 R
- if (digitalRead(0)){
9 c0 H, \3 @% R, r0 \1 f - ESP.deepSleep(0);
5 @, c. }; V: b8 Y$ z - } else {
4 t, e; D2 D, K; C7 n - server.begin();1 P) t& V, m3 J/ C2 H
- }/ D; n5 `2 q0 j/ ?
- }
* d* D0 N6 j/ D - void loop() {
* q* z+ l5 G$ H4 @) t8 {% g% p+ Y - server.handleClient();
0 R0 t/ v2 x. q! ^; p& i$ S2 ^ - delay(1);! a" l0 N/ q' I% Y3 I2 O
- }
- D* | L3 \) o% |% v) P - String doGet(String url){
: P" C8 A+ I% p; x: s, c# d - if ((WiFiMulti.run() == WL_CONNECTED)) {
7 y! t h9 C7 a - HTTPClient http;: A* a; N) {" q3 l0 {! w
- Serial.println("[HTTP] begin...");5 l& O' X0 Y" y! L; b- `
- if (url.startsWith("https")) {5 L; K# n$ F5 \% Y% o4 r
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 O+ Z T4 x1 t - } else {/ ~ y( K/ r: y3 ?0 V" ]3 X! w! }" e
- http.begin(url);
& H7 M/ Q" w+ \0 J$ K" [$ Z- O$ N" B - }
' K# D$ O0 r# W4 Y" I! e2 A# b - Serial.println("[HTTP] GET...");
! @; i' r6 F! e, {( h ]) q - int httpCode = http.GET();
* A7 q. I. s: _& ]- d - if (httpCode > 0) {% u+ M* D7 l) t8 a- J
- Serial.printf("[HTTP] code: %d\n", httpCode);
L) |$ g7 x h7 [- U - if (httpCode == HTTP_CODE_OK) {
9 d" l5 S9 W$ b, D9 V: K - String payload = http.getString();
6 A2 S: ]! N H; Q8 ^ - Serial.println(payload);
# f& p7 G$ N9 Q f+ {- V, Z! s - Serial.print("\r\n"); u, [% ]$ {8 \* }% \
- return payload;
2 F2 p4 v$ s3 Z( ~ - }
1 p5 u, T. q0 J6 n. E% W, K - } else {, _- K3 m! n6 v* U1 g7 p4 J
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 w0 l6 i' a/ F; N - http.errorToString(httpCode).c_str());
7 u1 m( \+ ^5 R - }
* p1 C+ T( \! ^4 N2 e - http.end();& H2 x2 Z+ d+ E0 @/ t3 [
- return "";
( Q; p% X4 w5 I( s4 Z b - }
* A3 C( J# _1 G8 O2 E7 f$ |2 j6 g# O - }# R1 B8 Y. V; U8 G# K7 Z
- void mainAction() {. N: N9 u2 W8 L6 m% F; m5 Y' [
- // 发送请求; _; a" h+ a# k: J; e: ^. y9 ?
- doGet("http://google.cn");
( O; T4 A0 K4 b& U; R - }
0 b8 d1 B0 ]! v
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